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Molecular determinants of viral virulence and pathogenicity, and development of improved vaccine candidates and diagnostic tests

Lead Research Organisation: THE PIRBRIGHT INSTITUTE
Department Name: UNLISTED

Abstract

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.

Technical Summary

The aim of the project is to characterise the molecular determinants that correlate with virus virulence, greater transmission and spread and to develop efficacious vaccines and highly sensitive diagnostic tests. This project will take forward our recent studies on Dynamics, selection and pathogenicity in avian influenza viruses: from individual to population and Genetic evolution in H9N2 viruses in poultry. These studies revealed that a number of precise molecular genetic changes in avian influenza virus genes could enhance virus adaption and fitness during experimental introduction or during natural circulation in chickens, turkeys and ducks, which directly correlate with increased virus virulence and transmissibility in different poultry hosts. To further study the functional role of these molecular markers, we will utilise a number of molecular, genetic and biophysical techniques to investigate how these mutations/substitutions affect the virus life cycle and increase pathogenicity.
In addition, the project encompasses the development of new improved control strategies against avian influenza viruses by developing new vaccines and highly specific diagnostic tests.

Planned Impact

unavailable

Publications

10 25 50
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Abdelwhab EM (2016) Introduction and enzootic of A/H5N1 in Egypt: Virus evolution, pathogenicity and vaccine efficacy ten years on. in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases

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Ali M (2019) Avian Influenza A(H9N2) Virus in Poultry Worker, Pakistan, 2015. in Emerging infectious diseases

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Baron MD (2018) Recent advances in viral vectors in veterinary vaccinology. in Current opinion in virology

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Beata Adamiak (2014) Selection and characterisation of DNA aptamers targeting influenza virus infections in poultry in International Mathematical Virology Workshop

 
Description We characterised the molecular determinants that correlate with virus virulence, greater transmission and spread and developed develop improved vaccines that protects chickens from avian influenza virus. we also developed novel regents for rapid and sensitive diagnosis of avian influenza H5, H7 and H9 sub-types.

We defined underlying mechanism how natural infection and vaccine induced immunity drive avian influenza H7 and H9 viruses to evolve and persists in poultry. The research outcomes provided base line data for future vaccine development and seed strain assessment by providing quantitative molecular markers that can help explain vaccine breakdown in the field and predict levels of antigenic drift during virus surveillance.

We employed a combination of techniques to provide an enhanced understanding of the molecular determinants in the haemagglutinin (HA) proteins of H5, H7 and H9 viruses that drive antigenic variability and vaccine failure. The results provide new molecular markers of antigenic change for AIVs that will help explain vaccine breakdown in the field. We also observed changes to epitope structure that determine antigenicity
Exploitation Route The work has been published and presented in scientific meetings. We and researchers around the world are using our findings and methods to improve control systems against influenza viruses.
Sectors Agriculture

Food and Drink

Education

Environment

Healthcare

Manufacturing

including Industrial Biotechology

Pharmaceuticals and Medical Biotechnology

 
Description Identified molecular markers that influence virus antigenicity and virulence. The data will be used for selection of effective vaccines and diagnostics as well as provide risk assessment of emerging variant viruses infecting poultry and causing zoonotic infections. We foundd evidence for the importance of other mechanisms of immune escape, with substitutions increasing glycosylation or receptor-binding avidity exhibiting the largest impacts on chicken antisera binding. Of these, meta-analysis indicates avidity regulation to be more relevant to the evolution of circulating viruses, suggesting that a specific focus on avidity regulation is required to fully understand the molecular basis of influenza virus antigenicity, immune escape and vaccine failure. These results will guide surveillance efforts against arising antigenic variants as well as evidence-based vaccine seed selection and vaccine design.
First Year Of Impact 2012
Sector Agriculture, Food and Drink,Creative Economy,Education,Environment,Healthcare,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology
Impact Types Societal

Policy & public services

 
Description BBSRC International Partnering Awards
Amount £49,500 (GBP)
Funding ID BB/P025803/1 
Organisation Biotechnology and Biological Sciences Research Council (BBSRC) 
Sector Public
Country United Kingdom
Start 07/2017 
End 07/2021
 
Description Institutional Links grants
Amount £269,123 (GBP)
Funding ID 261727271 
Organisation Newton Fund 
Sector Public
Country United Kingdom
Start 07/2017 
End 07/2019
 
Description Japan Partnering Award
Amount £49,500 (GBP)
Funding ID BB/P025803/1 
Organisation Biotechnology and Biological Sciences Research Council (BBSRC) 
Sector Public
Country United Kingdom
Start 08/2017 
End 08/2021
 
Description Newton Institutional Links grant
Amount £269,123 (GBP)
Funding ID 261727271 
Organisation Newton Fund 
Sector Public
Country United Kingdom
Start 08/2017 
End 08/2019
 
Description Reducing the Economic and Zoonotic Impact of Avian Influenza (REZIAI): delivering novel vaccines and diagnostics from laboratory to the field.
Amount £400,000 (GBP)
Funding ID BB/S013792/1 
Organisation The Pirbright Institute 
Sector Academic/University
Country United Kingdom
Start 02/2019 
End 01/2021
 
Description The Global Challenges Research Fund
Amount £640,473 (GBP)
Organisation Research Councils UK (RCUK) 
Sector Public
Country United Kingdom
Start 03/2019 
End 03/2024
 
Description iCASE studentship: Production and assessment of antiviral prophylactic properties of natural biomolecules against avian influenza and Newcastle disease viruses affecting poultry
Amount £100,000 (GBP)
Organisation Biotechnology and Biological Sciences Research Council (BBSRC) 
Sector Public
Country United Kingdom
Start 09/2019 
End 09/2023
 
Title Detection of HA antigens of avian influenza viruses 
Description Assay for detection of recombinant HVT expressing HA antigens of avian influenza viruses 
Type Of Material Technology assay or reagent 
Year Produced 2018 
Provided To Others? Yes  
Impact This new method will help to detect recombinant HVT vaccine expressing HA antigen in infected cell. 
 
Description Avian influenza H7N9 virus evolution: defining the impact of internal genes on virus infection in avian and mammalian species 
Organisation Francis Crick Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution (1) Exchange of research methods and reagents
Collaborator Contribution (1) Exchange of research methods and reagents. (2) Provision of training to PhD students and postdoctoral Scientist (3) Critical review of experimental data and manuscripts.
Impact (1) Joint funding: BBSRC Newton Fund: UK-China-Philippines-Thailand Swine and Poultry Research Initiative (2018-2021). Understanding antigenic diversity, zoonotic potential and immunological prevention of avian influenza viruses affecting poultry. Value: £497,995.93. UK Co-Is: Prof John McCauley (Crick Institute), Dr Richard Reeve (University of Glasgow). Collaborators from China: Dr Yipeng Sun, Prof Jinhua Liu and Dr Juan Pu (China Agricultural University), Prof Yongqing Li (Beijing Academy of Agriculture and forestry Sciences), Dr Wenfei Zhu (National Institute for Viral Disease Control and Prevention, China CDC).
Start Year 2007
 
Description Development of novel diagnostic tools and vaccines 
Organisation Francis Crick Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution The outcomes of research led to incite new collaborations with following partners in UK, Vietnam and Pakistan. Together with partners we apply for the collaborative research grant to BBSRC entitled "Combating avian influenza through systematic analysis of antigenic drift, genetic variation, and development of novel diagnostic tools and vaccines". That led to further improvement avian influenza virus vaccines and diagnostics and a number of research publication.
Collaborator Contribution The partners are evaluating the potency and efficacy of vaccines in countries where the disease is enzootic in poultry.
Impact 1. Peacock TP, Benton DJ, Sadeyen J-R, Chang P, Sealy JE.,d, Bryant JE, Martin SR., Shelton H, McCauley JW, Barclay WS, Iqbal M (2017) Variability in H9N2 haemagglutinin receptor binding preference and pH of fusion. Emerging Microbes & Infections 6, e11 2. Peacock T, Reddy K, James J, Adamiak B, Barclay W, Shelton H, Iqbal M (2016). Antigenic mapping of an H9N2 avian influenza virus reveals two discrete antigenic sites and a novel mechanism of immune escape. Scientific Reports 5: 18745. doi: 10.1038/srep18745. 3. Thuy DM, Peacock TP., Bich VTN, . Iqbal M, Juliet E. Bryant (2016). Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014. Infection, Genetics and Evolution 44: 530-540
Start Year 2014
 
Description Development of novel diagnostic tools and vaccines 
Organisation Imperial College London
Department School of Public Health
Country United Kingdom 
Sector Academic/University 
PI Contribution The outcomes of research led to incite new collaborations with following partners in UK, Vietnam and Pakistan. Together with partners we apply for the collaborative research grant to BBSRC entitled "Combating avian influenza through systematic analysis of antigenic drift, genetic variation, and development of novel diagnostic tools and vaccines". That led to further improvement avian influenza virus vaccines and diagnostics and a number of research publication.
Collaborator Contribution The partners are evaluating the potency and efficacy of vaccines in countries where the disease is enzootic in poultry.
Impact 1. Peacock TP, Benton DJ, Sadeyen J-R, Chang P, Sealy JE.,d, Bryant JE, Martin SR., Shelton H, McCauley JW, Barclay WS, Iqbal M (2017) Variability in H9N2 haemagglutinin receptor binding preference and pH of fusion. Emerging Microbes & Infections 6, e11 2. Peacock T, Reddy K, James J, Adamiak B, Barclay W, Shelton H, Iqbal M (2016). Antigenic mapping of an H9N2 avian influenza virus reveals two discrete antigenic sites and a novel mechanism of immune escape. Scientific Reports 5: 18745. doi: 10.1038/srep18745. 3. Thuy DM, Peacock TP., Bich VTN, . Iqbal M, Juliet E. Bryant (2016). Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014. Infection, Genetics and Evolution 44: 530-540
Start Year 2014
 
Description Development of novel diagnostic tools and vaccines 
Organisation National Agricultural Research Centre
Country Pakistan 
Sector Public 
PI Contribution The outcomes of research led to incite new collaborations with following partners in UK, Vietnam and Pakistan. Together with partners we apply for the collaborative research grant to BBSRC entitled "Combating avian influenza through systematic analysis of antigenic drift, genetic variation, and development of novel diagnostic tools and vaccines". That led to further improvement avian influenza virus vaccines and diagnostics and a number of research publication.
Collaborator Contribution The partners are evaluating the potency and efficacy of vaccines in countries where the disease is enzootic in poultry.
Impact 1. Peacock TP, Benton DJ, Sadeyen J-R, Chang P, Sealy JE.,d, Bryant JE, Martin SR., Shelton H, McCauley JW, Barclay WS, Iqbal M (2017) Variability in H9N2 haemagglutinin receptor binding preference and pH of fusion. Emerging Microbes & Infections 6, e11 2. Peacock T, Reddy K, James J, Adamiak B, Barclay W, Shelton H, Iqbal M (2016). Antigenic mapping of an H9N2 avian influenza virus reveals two discrete antigenic sites and a novel mechanism of immune escape. Scientific Reports 5: 18745. doi: 10.1038/srep18745. 3. Thuy DM, Peacock TP., Bich VTN, . Iqbal M, Juliet E. Bryant (2016). Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014. Infection, Genetics and Evolution 44: 530-540
Start Year 2014
 
Description Development of novel diagnostic tools and vaccines 
Organisation University of Oxford
Department Oxford University Clinical Research Unit Vietnam (OUCRU)
Country Viet Nam 
Sector Academic/University 
PI Contribution The outcomes of research led to incite new collaborations with following partners in UK, Vietnam and Pakistan. Together with partners we apply for the collaborative research grant to BBSRC entitled "Combating avian influenza through systematic analysis of antigenic drift, genetic variation, and development of novel diagnostic tools and vaccines". That led to further improvement avian influenza virus vaccines and diagnostics and a number of research publication.
Collaborator Contribution The partners are evaluating the potency and efficacy of vaccines in countries where the disease is enzootic in poultry.
Impact 1. Peacock TP, Benton DJ, Sadeyen J-R, Chang P, Sealy JE.,d, Bryant JE, Martin SR., Shelton H, McCauley JW, Barclay WS, Iqbal M (2017) Variability in H9N2 haemagglutinin receptor binding preference and pH of fusion. Emerging Microbes & Infections 6, e11 2. Peacock T, Reddy K, James J, Adamiak B, Barclay W, Shelton H, Iqbal M (2016). Antigenic mapping of an H9N2 avian influenza virus reveals two discrete antigenic sites and a novel mechanism of immune escape. Scientific Reports 5: 18745. doi: 10.1038/srep18745. 3. Thuy DM, Peacock TP., Bich VTN, . Iqbal M, Juliet E. Bryant (2016). Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014. Infection, Genetics and Evolution 44: 530-540
Start Year 2014
 
Description Development of novel diagnostic tools and vaccines 
Organisation University of Veterinary & Animal Sciences
Country Pakistan 
Sector Academic/University 
PI Contribution The outcomes of research led to incite new collaborations with following partners in UK, Vietnam and Pakistan. Together with partners we apply for the collaborative research grant to BBSRC entitled "Combating avian influenza through systematic analysis of antigenic drift, genetic variation, and development of novel diagnostic tools and vaccines". That led to further improvement avian influenza virus vaccines and diagnostics and a number of research publication.
Collaborator Contribution The partners are evaluating the potency and efficacy of vaccines in countries where the disease is enzootic in poultry.
Impact 1. Peacock TP, Benton DJ, Sadeyen J-R, Chang P, Sealy JE.,d, Bryant JE, Martin SR., Shelton H, McCauley JW, Barclay WS, Iqbal M (2017) Variability in H9N2 haemagglutinin receptor binding preference and pH of fusion. Emerging Microbes & Infections 6, e11 2. Peacock T, Reddy K, James J, Adamiak B, Barclay W, Shelton H, Iqbal M (2016). Antigenic mapping of an H9N2 avian influenza virus reveals two discrete antigenic sites and a novel mechanism of immune escape. Scientific Reports 5: 18745. doi: 10.1038/srep18745. 3. Thuy DM, Peacock TP., Bich VTN, . Iqbal M, Juliet E. Bryant (2016). Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014. Infection, Genetics and Evolution 44: 530-540
Start Year 2014
 
Description Investigating antigenic determinants inducing stronger and broader cross-protective immunity among H5 avian influenza viruses 
Organisation Royal Veterinary College (RVC)
Department Veterinary Basic Sciences
Country United Kingdom 
Sector Academic/University 
PI Contribution The overarching aims of the proposed research are to improve controls against H5 subtype of avian influenza viruses infecting poultry by investigating underlying mechanisms that define how vaccines renders effectiveness and develop novel approaches enhancing the effectiveness of H5 avian influenza vaccines. We recently generated a panel of monoclonal antibodies (mAbs) that recognise a variety of different clades of H5 viruses. Propagation of AIV in eggs or cultured cells together with mAbs drives virus to escape from mAbs neutralisation activity. These classical virus neutralization assays (VN) followed by HA gene sequence analysis allowed us to defined the role of amino acid substitutions that are associated with evasion of antibody neutralization through emergence of antigenic variants and failure of vaccine efficacy.
Collaborator Contribution provided intellectual input for achieving prescribed objectives of this work.
Impact Talk entitled "Molecular determinants for antigenicity and vaccine efficacy of avian influenza viruses" was presented at Newton Agham Researcher Links Workshop " Novel Vaccines and Diagnostic Technologies against Emerging and re-emerging Veterinary Pathogens" at Rizal Park Hotel, Manila, Philippines, 4-7 February 2019.
Start Year 2019
 
Description Investigating antigenic determinants inducing stronger and broader cross-protective immunity among H5 avian influenza viruses. 
Organisation Royal Veterinary College (RVC)
Country United Kingdom 
Sector Academic/University 
PI Contribution We developed research programme to characterise diversity of antigenic epitopes induce protective immunity in chickens against H5 subtypes of avian influenza viruses.
Collaborator Contribution Collaborating partner Dr Nicola Lewis at Royal Veterinary College provide advise to on cartography programme to visualize the antigenic similarity or difference among different strains of influenza viruses.
Impact The work under this collaborative determined the antigenic differences among different clades of H5 avian influenza viruses circulating in birds. This project is multi-disciplinary. our laboratory mainly work on virology and immunology part of the project and we seek help on computer modeling part from the collaborating partner Dr Nicola Lewis.
Start Year 2019
 
Description Molecular epidemiology of H9N2 avian influenza viruses in Vietnam and Pakistan. 
Organisation Royal Veterinary College (RVC)
Country United Kingdom 
Sector Academic/University 
PI Contribution Exchange of technical ideas, reagents and samples.
Collaborator Contribution Provision of field samples and data on avian influenza infection in poultry. This diseases is endemic in poultry in Pakistan.
Impact (1) Increased receptor binding avidity of H9N2 avian influenza viruses is associated with escape from antibody based immunity and enhanced zoonotic potential. presented by Joshua Sealy at GARAD and ZELS conferences in Haneoi, Vietnam from 17-27 January 2018.
Start Year 2008
 
Description Molecular epidemiology of H9N2 avian influenza viruses in Vietnam and Pakistan. 
Organisation University of Veterinary & Animal Sciences
Department Department of Microbiology
Country Pakistan 
Sector Academic/University 
PI Contribution Exchange of technical ideas, reagents and samples.
Collaborator Contribution Provision of field samples and data on avian influenza infection in poultry. This diseases is endemic in poultry in Pakistan.
Impact (1) Increased receptor binding avidity of H9N2 avian influenza viruses is associated with escape from antibody based immunity and enhanced zoonotic potential. presented by Joshua Sealy at GARAD and ZELS conferences in Haneoi, Vietnam from 17-27 January 2018.
Start Year 2008
 
Description Morphological differences of Influenza A viruses 
Organisation University of Edinburgh
Department The Roslin Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution Exchange of research methods and reagents
Collaborator Contribution (1) Exchange of reagents and Research methods.(2) training of PhD students and Postdoctoral Scientists (3) use of research facilities
Impact Research output were presented at Avian Influenza A virus budding morphology: spherical or filamentous? presented at The European Scientific Working group on Influenza (ESWI) Riga, Latvia. 10 to 13 September 2017 (2) .Budding morphology of avian influenza A viruses. Microbiology Society, annual Conference 2017, 306 April, EICC, Edinburggh, UK
Start Year 2016
 
Description The GCRF One Health Poultry Hub 
Organisation Royal Veterinary College (RVC)
Country United Kingdom 
Sector Academic/University 
PI Contribution The focus of the research is to achieve sustainable global intensification of poultry meat and egg production whilst reducing risks to human and animal health and welfare. We are undertaking research to investigate the diversity of avian influenza viruses prevalent in poultry and wild birds in south east Asia.
Collaborator Contribution Royal Veterinary College, London is leading this GCRF One Health Poultry Hub. The project will address the need to meet rising demand for poultry meat and eggs in developing countries, while minimising risk to international public health. Population growth is driving global demand for poultry, meat and egg production; this unfortunately creates conditions in which animal diseases can spread to humans ('zoonoses'). These include bacterial food poisoning and strains with avian influenza with epidemic or pandemic potential. The GCRF One Health Poultry Hub will adopt a 'One Health' approach to the issue of combatting animal-to-human diseases by bringing together a team of laboratory, clinical, veterinary and social scientists. This team will test and evaluate novel interventions. The need for safe poultry production is most urgent in South and South East Asia, so the RVC and its partners will then use their local networks in these regions to put its positive research to immediate use.
Impact Development of international interdisciplinary partnership of 55 investigators from 13 countries to address the emerging global challenges of food security and public health associated with intensification of poultry production.
Start Year 2018
 
Description The Pirbright "Livestock Antibody Hub" funded by Bill & Melinda Gates Foundation 
Organisation The Pirbright Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution Me and my team established collaboration in the "Livestock Antibody Hub" funded ($5.5 million) by the from Bill & Melinda Gates Foundation. Focus of our partnership is to develop techniques and capacity to analyse immune cells (B cells) of cattle, poultry and pigs that produce virus neutralizing antibodies. This research will support rational development of next generation of vaccines and to explore antibody-based passive immunization approaches for treatment and prophylaxis of infectious viral diseases affecting livestock and humans. Our initial focus is to target major animal viral pathogens that cause severe losses within Low and Middle-Income Countries (LMIC) animal production systems including avian influenza virus (AIV), Newcastle disease virus (NDV), infectious bursal disease virus (IBDV), infectious bronchitis virus (IBV) and foot-and-mouth disease virus (FMDV).
Collaborator Contribution This is a collaborative project and partners are providing help in provision of reagents and techniques for analysis of diversity of B cells repertoire that produce infleunza virus-specific antibodies, single cell sequencing and bioinformatic analysis. This project will further strengthen our on-going research collaborations with many research groups in academia as well as with animal health industry (Zoetis, Boehringer Ingelheim Animal Health, Merck, CEVA, Jovac, YeBio, ILRI, Galvmed, The Roslin Institute, HuMabs, AbCellera and Distributed Bio) to take the research outputs from laboratory to the field. The outputs of research will be improved vaccines and diagnostics enabling to reduce the impact of infectious diseases on farm animals, which offer substantial direct and indirect economic, public health, environmental and social benefits to the UK and rest of the world.
Impact Development of passive immunization approaches against avian influenza viruses affecting poultry (project incited in January 2020).
Start Year 2020
 
Description The role of segment 3 in H9N2 avian influenza virus pathogenicity 
Organisation University of Edinburgh
Department The Roslin Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution This is a Joint studentship project funded by The Pirbright Institute and The Roslin Institute. We identiifed molecular markers that are responsible for increase in virus pathogenicity and transmission.
Collaborator Contribution The Roslin Institute contributed both intellectually and by proving research training, samples and regents to achieve the prescribed objectives this project.
Impact 1. Oral Presentation Title: Identification of segment 3 sequence polymorphisms which alter shut off activity and pathogenicity of H9N2 avian influenza viruses in vivo. Anabel Clements, Saira Hussain, Holly Shelton, Paul Digard and Munir Iqbal. Global Alliance for Research Into Avian Diseases (GARAD). January 17th to 19th 2018. Fortuna Hotel, Lang Ha Street, Hanoi, VietNam 2. Poster title: What is the role of H9N2 avian influenza virus PA-X within an avian model?. Anabel Clements, Saira Hussain, Holly Shelton, Paul Digard & Munir Iqbal. UK- China CERAD (Centre of Excellence for Research on Avian Diseases), 3rd Symposium Recent Advances in Avian Disease Research. August 31st - 1st September 2017. The Harbour Hotel, Alexandra Terrace, Guildford, Surrey, UK. 3. Poster title: What is the role of H9N2 avian influenza virus PA-X within an avian model?. Anabel Clements, Saira Hussain, Holly Shelton, Paul Digard & Munir Iqbal. Microbiology Society Annual Conference. April 3rd-6th 2017. Edinburgh International Conference Centre (EICC), Edinburgh, UK. 4. Oral Presentation title: Identification of sequence polymorphisms in segment 3 of H9N2 avian influenza viruses that affect PA-X activity. Anabel Clements, Saira Hussain, Holly Shelton, Paul Digard & Munir Iqbal. Focused Meeting 2016: Molecular Biology and Pathogenesis of Avian Viruses. September 27th-29th 2016. Charles Darwin House, London, UK. 5. Oral Presentation title: The role of segment 3 in H9N2 avian influenza virus pathogenicity. Anabel Clements, Saira Hussain, Holly Shelton, Munir Iqbal & Paul Digard. UK -Taiwan BBSRC Partnering Award workshop: Improving Control of influenza viruses. 26th-27th April 2016. Taipei, Taiwan. 6. Oral Presentation title: Identification of sequence polymorphisms in segment 3 of H9N2 avian influenza viruses that affect PA-X activity. Anabel Clements, Saira Hussain, Holly Shelton, Munir Iqbal & Paul Digard. Microbiology Society Annual Conference 2016; virus Workshop: Negative strand RNA Viruses. 21st-24th March 2016. Arena and Convention Centre, Liverpool, UK. 7. Poster title: The role of segment 3 in H9N2 influenza virus pathogenicity. Anabel Clements, Saira Hussain, Holly Shelton, Munir Iqbal & Paul Digard. 7th Orthomyxovirus research conference. 16th-18th September 2015. Ecole Nationale Veterinaire de Toulouse, Toulouse, France. 8. Poster title: The role of segment 3 in H9N2 influenza virus pathogenicity. Anabel Clements, Saira Hussain, Holly Shelton, Munir Iqbal & Paul Digard. Edinburgh Infectious Diseases Annual Symposium. 20th May 2015. Royal College of Physicians, Edinburgh, UK.
Start Year 2014
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation Agricultural Research Centre
Department Veterinary Serum and Vaccine Research Institute
Country Egypt 
Sector Public 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation Francis Crick Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation Imperial College London
Department MSk Lab
Country United Kingdom 
Sector Academic/University 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation Imperial College London
Country United Kingdom 
Sector Academic/University 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation Suez Canal University
Country Egypt 
Sector Academic/University 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation University of Tokyo
Department International Research Center for Infectious Diseases
Country Japan 
Sector Hospitals 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description Understanding diversity of avian influenza viruses and improvement disease control in poultry and humans 
Organisation Zagazig University
Country Egypt 
Sector Academic/University 
PI Contribution This project helped my research group to establish research collboration between the Pirbright Institute and the scientists at the collaborating laboratories listed above and an excellent opportunity for building a joint "ONE HEALTH" platfor. I am sharing knowledge, reagents and techniques to improve efficacious vaccines and diagnostic tools against avian influenza viruses. The easy availability of better control tools against avian influenza viruses will aid in the reduction of poultry production losses and thus be important for global food security and improved animal welfare whilst also reducing zoonotic transmission to humans.
Collaborator Contribution Each collaborating institute and team member has specific expertise and facilities in areas relevant to this research programme. Collaborators in different institutions have extensive experience collecting field samples and implementing vaccination and large scale surveillance programmes. Each partner institutions have unique experience in monitoring the endemic prevalence of many animal diseases including avian influenza in both domestic and wild birds from which UK is under constant threat. The partners are sharing knowledge, expertise and facilities to investigate fundamental biology of influenza viruses and predict their epidemiological relevance, to assess potential risks and to devise appropriate intervention strategies. The knowledge, reagents and field samples will be available through this partnership. which will be essential for development of informed control policies and tools(vaccines and diagnostics) that may contribute to reducing the ever increasing threat from endemic, emerging and re-emerging influenza virus variants posing risk to animals and humans. Also, All researchers involved will benefit through ongoing professional development and advanced training in new technologies and new systems-level approaches to disease management. Exchange visits of researchers from collaborating laboratories to undertake training in a number of disciplines including disease surveillance, molecular virology, epidemiology, immunology, vaccinology and diagnostics will have a tangible impact on capacity building and training of next generation researchers in control of infectious animal and zoonotic diseases.
Impact The ultimate aims of this collaboration are to reduce the impact of influenza virus on poultry production and reduce their zoonotic transmission to humans. The collaboration will improve resources and capacity for disease control systems. Achieving these specific goals will prove a step-change in AIV disease management and increase in poultry productivity directly drives economic prosperity of farmers and allied communities. The will directly impact on socio-economic well-being of partner countries.
Start Year 2017
 
Description "Challenges for Poultry Industry". Organised by Fakieh Poultry at the Ritz-Carlton Hotel in Jeddah, Saudi Arabia, 2nd -3rd December 2018, 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Conference discussed prevention and control of infectious diseases affecting poultry production.
Year(s) Of Engagement Activity 2018
 
Description "Interactive session with poultry stakeholders". Title: Overview of Avian Influenza group Research at The Pirbright Institute. Presented at University of Veterinary and Animal Sciences (UVAS) Lahore, Pakistan, 3rd August 2018. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The workshop discussed the economic impacts and prevention strategies against avian influenza viruses affecting poultry production and zoonotic infections.
Year(s) Of Engagement Activity 2018
 
Description 1. Improvement of vaccines and diagnostics for avian influenza viruses. South West Chicken Association. 28th Annual Trade Fair and Conference, 19 April 2016. Bristol, UK. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact gave the overview of scientific advances for the control of avian influenza infection and spread in poultry to farmers and representative from poultry production chain.over 200 peoples attanded South West Chicken Association. 28th Annual Trade Fair and Conference, 19 April 2016. Bristol, UK.
Year(s) Of Engagement Activity 2016
URL https://www.farminguk.com/agricultural-shows-and-events/South-West-Chicken-Association-Conference-Tr...
 
Description 2. Overview of Avian Influenza group Research at The Pirbright Institute. Presented at "Interactive session with poultry stakeholders" at University of Veterinary and Animal Sciences (UVAS) Lahore, Pakistan, 3rd August 2018. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Dissemination of research Project outcomes These include presenting research data for vaccine seed strains with emergent field avian influenza variants; The zoonotic risk posed by emerging avian influenza viruses circulating in the wild birds and poultry. Impact of virus evolution on vaccine efficacy and persistence in poultry.
Year(s) Of Engagement Activity 2018
 
Description 4. H9N2 avian influenza in chickens of northern Vietnam: prevalence, diversity, pathogenicity. Options for the Control of Infuenza IX. Chicago, Illinois, USA, 24-28 August 2016. 5. Defining the antigenic sites of H9N2 avian influenza viruses. Options for the Control of In uenza IX. Chicago, Illinois, USA, 24-28 August 2016. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact International Influenza conference on options for the control of influenza infections in animals and humans.
Year(s) Of Engagement Activity 2016
URL http://2016.isirv.org
 
Description Avian influenza viruses can combine two techniques to evade vaccine immunity 
Form Of Engagement Activity Engagement focused website, blog or social media channel
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Media (as a channel to the public)
Results and Impact A study by researchers at The Pirbright Institute reveals more clues about how avian influenza viruses can evade vaccine immunity, aiding their spread in the field. The findings are published in Emerging Microbes and Infections.

Influenza viruses are able to mutate, which can enable them to evade immunity generated by natural infection or vaccination. Influenza viruses have four main ways of duping the immune system so that they can continue to infect and spread between birds. Pirbright scientists investigated two of these to further understand how the H9N2 avian influenza virus can change its genetic makeup to overcome poultry vaccines.

One of the methods the virus can use is to alter one of its surface proteins, haemagglutinin (HA), which enables the virus to enter the cell and replicate. HA is also a common target for the immune system's antibodies, which block the virus from binding to cell receptors. By changing just one or two protein components, HA can latch on far more tightly to the cell, preventing antibodies from stopping the virus. However, this can come at a cost, as particularly strong binding can prevent effective replication.

The other method scientists investigated is how H9N2 viruses disguise themselves by adding sugar chains to the surface of their HA proteins. This can block antibodies from binding, but also has varying fitness outcomes for the influenza virus. The researchers found that the location of the sugar chain on HA could determine how effectively the virus replicated.

They also demonstrated that the two evasive techniques could either compliment or act against each other - if an influenza virus had gained mutations that enable it to bind more strongly to cells, a sugar chain in the right position could restore its ability to replicate effectively. In contrast, weakly binding influenza viruses do not benefit from HA sugar additions, which instead reduce the virus's ability to replicate.

Professor Munir Iqbal, head of the Avian Influenza Group at Pirbright said, "We can use this knowledge to develop new vaccines that will help antibodies to recognise how the flu virus can change. This will provide protection to birds even as the virus evolves. We can also use this information to understand how viruses survive in poultry despite vaccination and monitor new adaptions that may appear in the field."

This research was funded by the Biotechnology and Biological Sciences Research Council (BBSRC), part of UK Research and Innovation (UKRI) and the British Council with support from the Newton Fund.

Article: Sealy, J. E., Peacock, T. P., Sadeyen, J. R., Chang, P., Everest, H. J., Bhat, S., Iqbal, M. (2020). Adsorptive mutation and N-linked glycosylation modulate influenza virus antigenicity and fitness. Emerging Microbes & Infections, advance online publication, 12 November 2020, doi: 10.1080/22221751.2020.1850180

[SOURCE: The Pirbright Institute]
Year(s) Of Engagement Activity 2020
URL https://www.star-idaz.net/2020/12/avian-influenza-viruses-can-combine-two-techniques-to-evade-vaccin...
 
Description Avian influenza: tackling large numbers of outbreaks this winter in the UK 
Form Of Engagement Activity A magazine, newsletter or online publication
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Public/other audiences
Results and Impact Nearly two years on, the COVID-19 pandemic is still dominating the news and continues to cause concern for populations across the globe. However, UK poultry and wild bird populations are currently facing their own health threat. We are not the only ones that have faced lockdowns because of spreading viruses, UK poultry and captive birds have also faced a similar situation to protect them from avian influenza. Scientists at The Pirbright Institute are working to increase understanding of how genetic changes in influenza A viruses can impact disease spread, host responses to infection and the pathology associated with the disease.

What is the avian influenza virus?
Avian influenza viruses are Influenza A viruses that circulate and transmit amongst birds. The disease is what we commonly know as 'bird flu'. Influenza A viruses can infect a range of hosts, including humans and two subtypes H1N1 and H3N2 circulate as seasonal flu each winter in the UK. Avian influenza viruses are different to those that can infect humans in that they cannot easily infect humans and must change and adapt to do so.

Aquatic birds are a natural reservoir for avian influenza viruses, these birds typically experience fewer clinical symptoms but can spread disease to domestic birds, particularly in the migratory season, between October and March. Avian influenza viruses are categorised as either highly pathogenic (HPAI) or low pathogenic (LPAI) and this categorisation is linked to the severity of disease in chickens.

HPAI has a high mortality rate which can be up to 100%, other symptoms can include swelling of the head, death of cells in the comb and wattle, red discolouration of legs and feet and diarrhoea. HPAI causes disease in more organs than just those in the respiratory or gastrointestinal tracts like LPAI, which mostly presents as respiratory symptoms such as a snick (like a sneeze), a rattle in the chest (known as rales) and discharge from the eyes and nose.

What is causing bird flu outbreaks in domestic birds now?
We are currently in the normal migratory season of wild birds. In the spring and summer months, these birds spend their time breeding and raising their young in North-eastern Asia where they mix with other bird species which enables virus transmission and mutation. Then, when they migrate for the autumn and winter months, they shed virus in their faeces along the way.

One of the migratory paths is across Northern Europe and this includes the UK. This year, in the UK, the first avian influenza outbreak was on 15 October and was discovered in captive aquatic birds. To date (17 December 2021) there have been 50 outbreaks in England, 1 in Wales and 2 in Scotland, this has resulted in over half a million birds being destroyed to control the spread of disease.

Are there more outbreaks this year compared to other years?
The number of outbreaks this year has been the most extensive ever. There have been over 50 outbreaks in the UK, compared to 26 outbreaks last year. Although it is hard to pin down the reason for this high number, we know it is not linked to the COVID-19 pandemic. The UK's response to the spread of avian influenza has been rapid, and from 29 November birds were required to be housed inside with additional biosecurity measures put in place such as foot dips and disinfecting clothing.

Testing and surveillance of wild birds have shown that there is a high prevalence of the virus in these birds currently, and this is contributing to the spread of disease to farm and domestic bird populations.

A more detailed look at the genetic make-up of these viruses shows that they are different to those from previous years. This is predicted to be as a result of the virus infecting multiple birds across a range of species, and this provides the perfect opportunity for the virus to evolve. Analysis of these genetic changes does not raise any alarm bells for increased transmission to humans, but they are likely impacting the spread and severity of disease in birds.

What should we do if we find a dead bird or are concerned about bird health?

If the public finds dead waterfowl birds they are encouraged not to touch them but to report them to Defra using the appropriate phone number that can be found on the website, also any other wild birds found dead in numbers of five or greater should be reported.

What is Pirbright doing to tackle this virus?

Researchers at Pirbright are attempting to enhance the control and detection of avian influenza in poultry populations as well as extend our basic knowledge about the virus in avian and mammalian hosts. The research groups led by Professor Munir Iqbal and Dr Holy Shelton are investigating how avian influenza virus strains originated from wild birds can rapidly adapt to cause disease outbreaks in poultry and gain the potential to infect humans. In addition, Professor Munir Iqbal is developing improved poultry vaccines that prevent virus replication and spread. These vaccines are particularly useful in countries where avian influenza is regularly found in the domestic poultry and the control and prevention of spread isn't easy, such as in the UK.
Year(s) Of Engagement Activity 2021
URL https://www.pirbright.ac.uk/news/2021/12/avian-influenza-tackling-large-numbers-outbreaks-winter-uk
 
Description BBSRC Partnering Seminar, University of Liverpool, Tamilnadu Veterinary and Animal Science University 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Talk presented entitled " Molecular determinants of antigenicity of H7 and H9 avian Influenza viruses". The research data shared with the colleagues working to reduce the impact of avian infectious diseases on poultry production. The discussion led to more collaboration and work together, acquiring reagents and protocols for further research and development activities.
Year(s) Of Engagement Activity 2019
 
Description Deimante Lukosaityte: Microbiology Society conference 2019. Poster presentation: Chicken protection against H9N2 virus by passive immunization 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Described techniques for development of next generation of vaccines against viral diseases affecting animals and humans.
Year(s) Of Engagement Activity 2019
 
Description Determinants of antigenicity of H9 Avian Influenza Viruses. UK-China Swine and Poultry Workshop.17-18 June 2019, The Pirbright Institute, UK. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of disease control systems (vaccines and diagnostics) to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Evolution of H9N2 avian influenza virus under immune pressure. Presented at 10th International Symposium on Avian Influenza, 15th - 18th April 2018, The Grand Hotel, Brighton, UK. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The primary aim of the workshop was to forge long-term research partnerships between early-career researchers, livestock industry and national disease control authorities in the UK and the Philippines. In addition, the activity hopes provide information about the emerging and next generation diagnostic and vaccine strategies and their utilization to reduce the impact of viral diseases on livestock and poultry.
Year(s) Of Engagement Activity 2019
URL https://www.slideshare.net/zerep_cire/2019-newton-agham-researcher-links-workshop-vaccines-and-diagn...
 
Description Evolutionary fitness of avian influenza viruses and development of improved vaccines and diagnostics. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Seminar entitled "Evolutionary fitness of avian influenza viruses and development of improved vaccines and diagnostics" was presented as invited speaker to Postgraduate students and staff at RVC (Hawkshead Campus), UK. 19 October 2016.
Year(s) Of Engagement Activity 2016
 
Description Evolutionary fitness of avian influenza viruses and development of improved vaccines and diagnostics. Seminar as inviated speaker at RVC (Hawkshead Campus), UK. 19 October 2016. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Talk delivered on the topic "improvement of vaccines and diagnostic for poultry at The pirbright Institute UK, as an invited speaker at Royal Veterinary College (RVC) London
Year(s) Of Engagement Activity 2016
 
Description Genetic engineering speeds up poultry vaccine development 
Form Of Engagement Activity A press release, press conference or response to a media enquiry/interview
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Media (as a channel to the public)
Results and Impact Researchers report the rapid generation of a bivalent vaccine against Marek's disease and avian influenza

Scientists at The Pirbright Institute have used genetic engineering to develop a vaccine that protects birds against both Marek's disease and avian influenza. They say the process is faster and more efficient compared to previous methods, which will allow poultry vaccine producers to rapidly update vaccine strains in order to keep up with virus evolution.

In a study published in the journal Vaccines, the team used the gene editing tool CRISPR/Cas9 to insert an avian influenza gene into the turkey herpesvirus (HVT) that is used in Marek's disease vaccines. The gene codes for haemagglutinin (HA), an influenza protein that is key for virus entry into host cells and is therefore an important target of the host immune response to block infection.

"HVT is already widely used in vaccines against Marek's disease and can be administered to eggs, enabling automated delivery and providing birds with protection from the day they hatch. The additional HA gene we have incorporated will be expressed by HVT when it replicates in host cells, meaning that a single dose of vaccine induces immunity against both viruses", explained Professor Munir Iqbal, Head of the Avian Influenza group at Pirbright.

"The genetic engineering process we have developed using CRISPR/Cas9 is far quicker and more efficient than previous technologies, as well as being very consistent and accurate. These attributes are essential for providing fast and reliable vaccine production to protect poultry", Prof Iqbal added.

Mutations can occur with high frequency in HA proteins, enabling influenza viruses to evade immunity generated by vaccines. Using CRISPR/Cas9 to create new vaccines will help tackle evolving viruses by reducing the time it takes manufacturing companies to adapt their vaccine strains to match these mutations, allowing faster responses to outbreaks and providing better protection.

Although this gene editing method is very reliable, a small number of HVT viruses fail to incorporate the HA gene into their own genome effectively. To ensure HA is being expressed in the vaccine, the team exploited the HA protein's ability to bind to molecules on the surface of red blood cells.

Chicken cells infected with the successfully modified HVT virus express HA on their surface which red blood cells attach to, forming a clump that can be visualised using microscopy. This simple test improves the speed at which suitable vaccine candidates can be identified and has a much broader application as it can also be used for other viruses that incorporate proteins which interact with red blood cells.

"Improving how we make vaccines is critical for preventing avian influenza outbreaks. Our work could help reduce the spread of disease between birds and reduce the risk of infection for people who work closely with poultry", Prof Iqbal said. "Now that we have developed a rapid method for generating this modified vaccine, our next steps will be to study the vaccine's effectiveness in field trials."
Year(s) Of Engagement Activity 2020
URL https://www.cabi.org/vetmedresource/news/66612
 
Description H9N2 avian influenza viruses: impact of evolutionary changes on virus antigenicity, receptor binding and zoonotic potential. Presented at "Conference on Animal Infectious Diseases and Human Health" held at The Veterinary Biotechnology Branch of Chinese Association of Animal Science and Veterinary Medicine & the Veterinary Immunology Branch of Chinese Society for Immunology. August 7th-10th, 2018 Harbin, China. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Focus of the conference was to improve control against infectious diseases affecting poultry and livestock.
Year(s) Of Engagement Activity 2018
 
Description H9N2 avian influenza viruses: impact of evolutionary changes on virus antigenicity, receptor binding and zoonotic potential. Presented at "Conference on Animal Infectious Diseases and Human Health" held at The Veterinary Biotechnology Branch of Chinese Association of Animal Science and Veterinary Medicine & the Veterinary Immunology Branch of Chinese Society for Immunology. August 7th-10th, 2018 Harbin, China. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Dissemination of research outcomes to prevent and control of infectious diseases of animals and humans.
- Avian influenza virus evolution and efficacy.
-
Year(s) Of Engagement Activity 2018
 
Description High pathogenicity avian Influenza (HPAI) H5 in Europe -Epidemiology and Surveillance. Presented via Webinar, organized by Boehringer Ingelheim, 3rd July 2020. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Talk entitled; High pathogenicity avian Influenza (HPAI) H5 in Europe -Epidemiology and Surveillance. talk was organized by Boehringer Ingelheim, 3rd July 2020 and presented via Webinar.
Year(s) Of Engagement Activity 2020
 
Description How virus tracking can help us prevent future pandemics 
Form Of Engagement Activity A press release, press conference or response to a media enquiry/interview
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Media (as a channel to the public)
Results and Impact UAR interviewed Professor Munir Iqbal, head of the Avian Influenza group at The Pirbright Institute, https://www.pirbright.ac.uk/users/prof-munir-iqbal.

The Pirbright Institute specialises in the research and diagnosis of livestock viral diseases and viruses that spread from animals to humans.

The Institute is part of an international network that tracks viruses and formulates ways to control and prevent outbreaks, such as creating new vaccines and better diagnostics.

While the Covid-19 pandemic grabs the headlines there are other, potentially more deadly viruses, spreading through the animal kingdom, which may have the capacity to infect humans.

Perhaps the most well-known pandemic agent - before Covid-19 - was the flu virus. The 1918 influenza pandemic, caused by an H1N1 virus of avian origin, was the most severe pandemic in recent history, infecting one-third of the world's population and killing at least 50 million worldwide. These viruses evolve, so every year the world is at risk of a new strain of flu. One related virus that caused the 2009 swine flu pandemic killed over 200,000 people worldwide.

Professor Munir Iqbal heads up the Avian Influenza Virus group at The Pirbright Institute. This group is imitating natural selection and evolution of influenza viruses in the lab. They hope to identify how viruses might change - potentially to be more dangerous. By identifying those changes they can make informed decisions about how to create vaccines against these potential new strains.

A new strain, H7N9, emerged in China in February 2013, infecting both poultry and humans. Since then, there have been over 1500 confirmed human infections from this strain with an estimated 40% fatality rate.

By 2017 the Chinese government had, very rapidly for a new vaccine, implemented a mass vaccination programme against H7N9 in poultry. This was accompanied by a striking reduction in human infection from this virus.

At first this seemed to be good news, but it turns out that suboptimal vaccine practices were creating an evolutionary pressure for the virus to change - to escape the effects of vaccination. As the virus evolved it didn't infect human populations so well, but it became more aggressive in the poultry, even if they had been vaccinated. Iqbal explains,

"At The Pirbright Institute, we study how these viruses evolve to persist in poultry and overcome vaccines, and how mutations impact virus virulence, transmission and, pathogenicity. Ultimately this will give us information on bird-to-human transmission and help develop diagnostic tools and vaccines to better fight the virus."

Disease transmission has to be studied in chickens but disease virulence can be quantified using chicken eggs. 14 day-old fertilised eggs are infected with the virus which then replicate. The faster the virus replicates in the embryo, the more virulent the strain.

"The quantity of virus being produced often equates to the aggressiveness of the disease. Very often viral infection depends on the amount of virus that you come in contact with. One particle might not infect animals or humans, but thousands could. In the same way, a smaller amount of virus might be needed to infect poultry compared to humans. We live alongside loads of virus without getting sick until we come across an amount large enough to cause an infection," explains Iqbal.

By imitating the natural selection process in the lab, the researchers identified the specific mutation that allowed the Chinese H7N9 virus to escape vaccine-induced immunity. They were also able to predict the evolution of influenza viruses. Three mutations that were observed in the lab have since been found in the field in 2019.

"These changes can have a huge impact in terms of virus transmission, virus virulence and virus transfusion across species from avian-to-human, avian-to-avian, or even to different mammalian species," adds Iqbal.

Fortunately for us, these three mutations prevent H7N9 viruses from binding to human cells, but increase their binding, replication and stability in chicken cells and embryos. This means that the strains that had evolved around the vaccination posed a lower threat to humans, but an increased risk to poultry. Mass vaccination of poultry against H7N9 strains in China might have been beneficial to humans, driving virus evolution away from a human pandemic, but it also meant that the evolved viruses posed an even greater threat to poultry.

However, this might not be the case for all strains warns Iqbal. Not all mutations that arise due to vaccine induced evolution, push viral strains away from human infection. In the future, other mutations may have human pandemic potential or be even more deadly to poultry.

Influenza viruses are a particular risk, as they infect a huge range of animals and mutate rapidly, which gives them the capacity to jump species and evade the immune system. They are particularly a cause for concern, because they circulate in livestock such as pigs and poultry which regularly come into close contact with humans.

Using a method that can predict how vaccination may change influenza virus characteristics is potentially valuable for making new vaccines against these fast evolving viruses. These predictions could also provide advanced warning of mutations that could increase likelihood of human infection.

Looking out for these viral mutations in the global health surveillance programme can help in the monitoring for potential threats. This might allow us to get ahead of them, by developing and using new vaccines, before new viral variants have a chance to spread and spiral out of control in a new pandemic.
Year(s) Of Engagement Activity 2020
URL https://www.understandinganimalresearch.org.uk/news/research-medical-benefits/how-virus-tracking-can...
 
Description Identification of antigenic epitopes to broaden and enhance the efficacy of avian influenza vaccines. Presented at 6th Animal Vaccines and immune Adjuvant Technologies Salon & Advanced seminar, Shandong-Binzhou Animal Science and Veterinary Medicine Academy, China, 18-20 October 2019. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion was the best practices to improve control systems (vaccines and diagnostics) for prevention of avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Immuno-pathobiology of H9N2 avian influenza viruses: looking at how the viruses evolve and persist in poultry. Presented at "Techniques for Healthy Farming and Diseases Prevention & Control of Livestock and Poultry. Beijing, August 13th-15th, 2018. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Dissemination of research outputs. Improvement of vaccines and diagnostics.
Year(s) Of Engagement Activity 2018
 
Description Improving vaccines and diagnostics for Avian influenza viruses affecting poultry. Presented at the International Poultry Expo "Poultry Science Conference", Lahore, Pakistan, 13-15 September 2019. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion was the best practices to improve control systems (vaccines and diagnostics) for prevention of avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Innovate Guildford (Angita Shrestha): 
Form Of Engagement Activity Participation in an open day or visit at my research institution
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Public/other audiences
Results and Impact GENERAL SCIENCE
Year(s) Of Engagement Activity 2019
 
Description International Conference 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Global Alliance for Research on Avian Diseases conference health in Hanoi 17-19 January 2018. Purpose of the conference was to establish global partnerships and links between academic researchers and the poultry industry to improve joined up work in regards to preventing, controlling and
combating avian diseases. The conferences provided a forum for discussion and exchange of ideas around the single theme of exploiting available opportunities to deal with emerging and existing infectious avian diseases in poultry production systems and to safeguard food supplies and human health.
Conference speakers discuused basic, applied and commercial aspects of research on avian diseases including:
• Evolution and Epidemiology of Avian Pathogens
• Host-Pathogen Interactions - Virulence and Pathogenicity
• Pathogen Mechanisms of Immune Evasion
• Next Generation Disease Control Strategies
• Vaccines
• Immunity
• Diagnostics
• Zoonoses and Socio-economic impacts of avian diseases
• Global Research Opportunities and Threats
Year(s) Of Engagement Activity 2018
URL http://www.theeventsportal.com/GARAD-2018/3/Home
 
Description Lorin Adams (Gordon's School Careers Fair) 
Form Of Engagement Activity Participation in an open day or visit at my research institution
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Schools
Results and Impact Describe the research that lead to improve control systems against infectious viral diseases of animals and from animals to humans.
Year(s) Of Engagement Activity 2019
 
Description Mapping antigenic determinants of H9N2 avian influenza viruses and improving vaccines and diagnostics" presented at Foreign Talent Lecture: New strategies and new techniques for the prevention and control of major avian diseases. Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou, China. 6th August 2018. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The focus of the meeting was to improve the control systems against poultry diseases including development of improved vaccines and diagnostics
Year(s) Of Engagement Activity 2018
 
Description Molecular Determinants for Antigenicity and Vaccine Efficacy of H9 and H7 Avian Influenza Viruses. Newton Agham Researcher Links Workshop: Novel vaccines and diagnostics technologies against Emerging and re-emerging veterinary Pathogens. 4-7 February 2019 at Rizal Pak Hotel, Manila, Philippines. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of disease control systems (vaccines and diagnostics) to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Molecular determinants modulating avian influenza H7N9 virus antigenicity. Presented at The Microbiology Society Annual Conference 2019, 8-11 April ICC Belfast, UK. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of disease control systems (vaccines and diagnostics) to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Molecular determinants of antigenicity of H7 and H9 avian Influenza viruses. Presented as invited speaker at BBSRC UK-India Partnering Award seminar: University of Liverpool. 2 May 2019. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of disease control systems (vaccines and diagnostics) to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Munir Iqbal: Cheltenham Science Festival 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Public/other audiences
Results and Impact Describe the research that lead to improve control systems against infectious viral diseases of animals and from animals to humans.
Year(s) Of Engagement Activity 2019
 
Description Newton Agham Researcher Links Workshop on "Novel Vaccines and Diagnostic Technologies Against Emerging and Re-emerging Veterinary Pathogens, Rizal Park Hotel, Manila, Philippines 4-7 February 2019 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The primary aim of this workshop was to forge long-term research partnerships between early-career researchers, livestock industry and national disease control authorities in the UK and the Philippines. The workshop provided information on emerging and next generation diagnostic and vaccine strategies and their utilization to reduce the impact of viral diseases on livestock and poultry.
Year(s) Of Engagement Activity 2019
URL https://www.slideshare.net/zerep_cire/2019-newton-agham-researcher-links-workshop-vaccines-and-diagn...
 
Description Pengxiang Chang: Talk presentation:The application of CRISPR/Cas9 system in the generation of viral vectored avian influenza vaccines at Microbiology Society conference, UK. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of vaccines to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
URL https://microbiologysociety.org/event/annual-conference/annual-conference.html
 
Description Pengxiang Chang:Influenza update meeting. The application of CRISPR/Cas9 in the development of vaccines against avian influenza virus 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact Described techniques to improve and produce new effective vaccines against viral diseases of animals and humans.
Year(s) Of Engagement Activity 2019
 
Description Pirbright Institute research teams studying characteristics of influenza virus that may alter disease outcomes in poultry. 
Form Of Engagement Activity A press release, press conference or response to a media enquiry/interview
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Media (as a channel to the public)
Results and Impact Avian influenza, commonly known as "bird flu," is a disease caused by multiple strains of influenza virus. The viruses can infect a wide range of animals, including people and pigs, but the natural reservoir lies in populations of wild aquatic birds such as ducks and gulls, according to an announcement from The Pirbright Institute in the U.K., which is conducting research to better understand avian influenza viruses to help prevent the disease in poultry.

Flu virus strains are categorized by the combination of the two proteins found on the outside of the virus: hemagglutinin (H) and neuraminidase (N) -- for example, H5N6 or H9N2. The H protein binds to cell receptors in order to initiate infection, while the N protein helps release new viruses from an infected cell, the institute explained.

Strains are also classified by severity. Low-pathogenic avian influenza (LPAI) viruses cause clinical signs such as mild breathing problems, decreased egg production and growth. Some birds, particularly ducks and geese, do not display any signs of LPAI infection and are still able to spread the disease, Pirbright said. When LPAI viruses circulate in high-density poultry areas, the viruses can mutate into highly pathogenic strains.

Highly pathogenic avian influenza (HPAI) viruses have severe and often fatal effects on some species of birds such as chickens, Pirbright noted, but some HPAI strains cause mild or no clinical signs of disease in wild birds and domestic waterfowl. These strains are notifiable, meaning government control measures must be put in place.

Avian influenza can be carried vast distances by wild migratory birds and can infect domesticated poultry through direct contact or through contaminated droppings and bodily fluids, Pirbright said. Because of this, there is a year-round risk of avian influenza, which can increase depending on the disease status in a region and the migration season of wild aquatic birds.

According to Pirbright, good biosecurity is essential in preventing poultry from being exposed to the disease and can be practiced on a commercial farm, with game birds or even with just a few backyard hens.

Why is influenza so difficult to prevent?

The institute explained that influenza viruses are constantly changing, and when they replicate, small errors called mutations are copied into their genome. Some of these will alter the virus's proteins, allowing the virus to escape detection by the immune system.

All flu viruses also have the potential to undergo a process called reassortment, where two or more strains of influenza infect the same animal, allowing them to swap parts of their genome, Pirbright said. The resulting viruses can potentially have different characteristics than the original strains, such as the ability to replicate in different species, including people, the institute added.

Avian influenza viruses such as H5N1 or H7N9 have infected people, predominantly in Southeast Asia, but in these cases, the virus has been transmitted directly from infected birds to people, with no onward spread. There is some evidence that avian influenza can be passed from person to person, and while there are no records of efficient or sustained human transmission, there is a constant risk that one of the new strains may spread easily among people, which could result in a new influenza virus pandemic, Pirbright said.

Changes in the virus genetics from mutation or reassortment make it very difficult to anticipate how influenza viruses will spread through a population and whether current vaccines will be suitable for the strains that are circulating, Pirbright announced.

The influenza research programs at Pirbright are progressing understanding of the virus and finding better ways to prevent its spread.

Pirbright Institute group leaders Dr. Holly Shelton and professor Munir Iqbal are researching how the characteristics of influenza viruses can change the outcomes of disease. Studying flu at the molecular level allows them to find out how the virus evolves to overcome avian immunity and how changes in their genome can alter disease severity and their ability to affect different species, the announcement said.

Shelton's and Iqbal's teams are working on identifying genetic markers for specific disease traits that can be used in surveillance systems to provide forewarning of strains that could cause pandemics. For example, Shelton's Influenza Viruses group is looking at which characteristics allow the viruses to become resistant to antiviral drugs that are currently used to treat human infections of influenza, allowing surveillance to provide an early warning of viruses that could cross into humans and be difficult to control, Pirbright said.

The team is also investigating how long it takes for avian influenza viruses to adapt to new mammalian species. According to the institute, establishing which strains can rapidly adapt and identifying the genetic changes made to enable infection of mammalian cells will help with surveillance efforts and potentially lead to the development of techniques that will help prevent these mutations occurring.

Vaccination and rapid diagnosis are very important for influenza prevention and control, but it is still not currently possible to protect against all influenza strains, Pirbright said, noting that Iqbal's Avian Influenza group is exploring which sites on the virus trigger the chicken immune system to respond quickly and fight off infection. This will better inform scientists' ability to match vaccines to strains in the field and could help to develop vaccines that are more effective.

Iqbal's group is also developing multivalent vaccines that protect chickens and ducks from several avian influenza subtypes at once as well as test kits for rapid diagnosis of different subtypes at the flock-side, the announcement said.

Visit Pirbright's Influenza Viruses and the Avian Influenza group pages to find out more about their research.

Source: The Pirbright Institute, which is solely responsible for the information provided and is wholly owned by the source. Informa Business Media and all its subsidiaries are not responsible for any of the content contained in this information asset.
Year(s) Of Engagement Activity 2019
URL https://www.feedstuffs.com/nutrition-health/protecting-poultry-avian-influenza
 
Description Poultry Stakeholders meeting hosted by Al Dousari Veterinary Services and Agriculture Co (Qatar ) in Qatar, 15 October 2019 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The focus of talk was best practices for prevention and control of Avian influenza disease outbreaks in poultry

Vaccines and diagnostics for the control of avian influenza in poultry
Year(s) Of Engagement Activity 2019
 
Description Poultry Stakeholders meeting hosted by Almarai, 15 October 2019 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Engagement with Almarai Poultry. The focus of the meeting with Almarai Poultry disease control team was to share knowledge on improved vaccination and diagnostic techniques against avian influenza viruses affecting poultry production.
Year(s) Of Engagement Activity 2019
 
Description Poultry Stakeholders meeting in Kuwait city 16 October 2019 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Prevention and control of avian influenza outbreaks in poultry.
Described new vaccination and diagnostic technologies that provide more robust cross-protective immunity in emerging antigenic divergent strains of avian influenza viruses.
Year(s) Of Engagement Activity 2019
 
Description Protecting poultry from avian influenza through passive immunisation. Presented at Foreign Experts Seminar "New strategies and new tools for the prevention and control of major poultry diseases. Shandong-Binzhou Animal Science and Veterinary Medicine Academy, China, 20-22 September 2019. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion was the best practices to improve control systems (vaccines and diagnostics) for prevention of avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description Rebecca Daines: Cheltenham Science Festival 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Public/other audiences
Results and Impact Described the research undertaken at the Pirbright Institute that lead to improve control systems against infectious viral diseases of animals and from animals to humans.
Year(s) Of Engagement Activity 2019
 
Description Recombinant single chain variable fragment (scFv) antibody protects chickens from avian influenza. Presented at Systems Immunology Workshop: Adaptive immune repertoires and beyond. 16th-17th January 2020. University of Surrey, UK 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact A talk entitled "Recombinant single chain variable fragment (scFv) antibody protects chickens from avian influenza" was presented at the workshop exploring new technical advances for analysis and production of antibodies for prophylaxes and treatment of animal and humans diseases. Both academics and staff linked with animal and public health industry attended this workshop.
Year(s) Of Engagement Activity 2020
 
Description Sushant Bhat:Pirbright Dragon Fair 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact Described the research undertaken at the Pirbright Institute that lead to improve control systems against infectious viral diseases of animals and from animals to humans.
Year(s) Of Engagement Activity 2019
 
Description Sustainable poultry (meat and eggs) production in Pakistan: Challenges and Opportunities. 
Form Of Engagement Activity A formal working group, expert panel or dialogue
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Policymakers/politicians
Results and Impact Discussion on sustainable poultry (meat and eggs) production in Pakistan: Challenges and Opportunities. Presented at UKRI-GCRF "Food Security, Agriculture, and Nutrition" workshop, Marriott Hotel, Islamabad, Pakistan. 9th- 10th March 2020.
organised by UKRI GCRF team.
The outcomes include the establishment of collaborative links with key stakeholders including policymakers and disease control officials. Closer links were established with official responsible for animal health and food security officials including Minister for Science and Technology of Pakistan, High commissioner of UK High Commission in Pakitan. Discussion agenda and key outcomes were also communicated to the President of Pakistan, Chairman of Higher Education Commission Pakitan and representatives from FAO and UKRI GCRF team.
Year(s) Of Engagement Activity 2020
URL https://www.thenews.com.pk/print/626768-upsign-network-ukri-to-organise-global-development-workshops
 
Description Talk Presented at 2nd International Congress of Veterinary Microbiology, 16th -19th October 2018. Sherwood Breezes Resort-Lara, Antalya, Turkey. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Conference discussed improving prevention and control of viral diseases of poultry.
Year(s) Of Engagement Activity 2018
 
Description The Pirbright Village Duck Fair held on 16 June 2018 
Form Of Engagement Activity Participation in an open day or visit at my research institution
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact Local Village Fair, interaction with local residence to expanse research aims and activities of The Pirbright Institute and benefits to UK and around the globe to prevent and control infectious diseases of animals and humans.
Year(s) Of Engagement Activity 2018
 
Description The co-Circulation of Low and High-path-AIV in the same country with sub-optimal bio-security: Virus evolution and impact on vaccine efficacy. Presented at the 11th Scientific conference of Egyptian Veterinary Poultry Association, Conference "Towards a National strategy to control poultry industry problems in Egypt". 20-23 April 2019. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of disease control systems (vaccines and diagnostics) to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description The global Situation and pathobiology of Avian Influenza in different Avian Species. Presented at the 11th Scientific conference of Egyptian Veterinary Poultry Association, Conference "Towards a National strategy to control poultry industry problems in Egypt". 20-23 April 2019.. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact The talk and the discussion on the improvement of disease control systems (vaccines and diagnostics) to prevent avian influenza viruses infection in poultry and zoonotic infections in humans.
Year(s) Of Engagement Activity 2019
 
Description The rise and fall of antigenic mutations: A path to the persistence of avian influenza viruses. The Pirbright Institute Research Update Seminar Series. 27th April 2021. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Professional Practitioners
Results and Impact A seminar at the Pirbright Institute Research Update Seminar Series. 27th April 2021. The research outcomes were discussed detailing how the avian influenza viruses (H9 subtype) evolve under vaccine immune pressure to sustain their fitness in poultry. Described the evolutionary genetic markers that significantly change the virus antigenicity which ultimately reduce the effectiveness of poultry vaccines against avian influenza viruses affecting poultry and huamns.
Year(s) Of Engagement Activity 2021
 
Description UK-China Philippines-Thailand Swine and Poultry Research Initiative project kick-off workshop" at China Agriculture University, Beijing, 26th-28th September 2018. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Emerging new approaches were discussed for prevention and control of infectious diseases affecting swines and poultry.
Year(s) Of Engagement Activity 2018
 
Description Understanding Antigenic Diversity, Zoonotic potential and immunological prevention of avian influenza viruses affecting poultry. Presented at "UK-China Philippines-Thailand Swine and Poultry Research Initiative project kick-off workshop" at China Agriculture University, Beijing, 26th-28th September 2018. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Meeting focus was to share research plans funded under "UK-China-Philippines-Thailand Swine and Poultry Research Initiative". Research projects investigate pathogens, zoonotic pathogens or "commensals" associated with food safety issues affecting poultry and swine.
Year(s) Of Engagement Activity 2018
URL https://bbsrc.ukri.org/funding/filter/joint-swine-poultry-initiative/
 
Description Understanding antigenic diversity, zoonotic potential and immunological prevention of avian influenza viruses affecting poultry. Presented at UK-China-Philippines-Thailand Swine and Poultry Research Initiative: Interim Project Workshop 13th-15th January 2020 Hilton Hotel, Bracknell, UK 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Outcomes of the research project entitled "Understanding antigenic diversity, zoonotic potential and immunological prevention of avian influenza viruses affecting poultry" were presented to colleagues working on prevention and control of infectious diseases affecting animals and humans. the work led to incite further research collaborations with different groups from UK, China, Thailand and Philippine.
Year(s) Of Engagement Activity 2020
 
Description Understanding avian influenza virus evolution and development of next generation vaccines. Presented at 459th Scientific Meeting of The Veterinary Research Club at The Farmers Club, 3 Whitehall Court London Friday 14th February 2020. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact A talk presented entitled"Understanding avian influenza virus evolution and development of next generation vaccines". The discussion with senior staff from DEFRA and UKRI- BBSRC, researchers and veterinary professional like with control and prevention of animal diseases in United kingdom
Year(s) Of Engagement Activity 2020
 
Description Understanding avian influenza virus evolution, antigenic diversity and vaccine failure. Presented at the 2019 Symposium on techniques for healthy breading and disease prevention & control of livestock and poultry, Golden Harbor Hotel, Beijing, 21-23 August 2019. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Talk and discussion on the control of infectious animal diseases including avian influenza.
Year(s) Of Engagement Activity 2019
 
Description Visit to Cairo Poultry Company (CPC) 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Industry/Business
Results and Impact Discussion and talk on prevention and control of poultry diseases (avian influenza and Newcastle Disease) and molecular factors affecting vaccine efficacy. The discussion and talk to present data, describing factors the directly influence protective efficacy of in use vaccines, and how they evaluate/ test vaccine failure.
Year(s) Of Engagement Activity 2019
 
Description Zoonotic Pathogens and Biorisk Management. 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Talk was presented at workshop "Zoonotic Pathogens and Biorisk Management" at University of Veterianry and Animal Scieences Lahore, Pakistan and Institute of public health, Lahore 26-28 October 2016.

Both Medical and Veterinary professionals attended the workshop for CPD.
Year(s) Of Engagement Activity 2016