1
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Ly H. Highly pathogenic avian influenza H5N1 virus infection of companion animals. Virulence 2024; 15:2289780. [PMID: 38064414 PMCID: PMC10761027 DOI: 10.1080/21505594.2023.2289780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Affiliation(s)
- Hinh Ly
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, MN, USA
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2
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Zhang Z, Lei Z. The Alarming Situation of Highly Pathogenic Avian Influenza Viruses in 2019-2023. Glob Med Genet 2024; 11:200-213. [PMID: 38947761 PMCID: PMC11213626 DOI: 10.1055/s-0044-1788039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024] Open
Abstract
Avian influenza viruses (AIVs) have the potential to cause severe illness in wild birds, domestic poultry, and humans. The ongoing circulation of highly pathogenic avian influenza viruses (HPAIVs) has presented significant challenges to global poultry industry and public health in recent years. This study aimed to elucidate the circulation of HPAIVs during 2019 to 2023. Specifically, we assess the alarming global spread and continuous evolution of HPAIVs. Moreover, we discuss their transmission and prevention strategies to provide valuable references for future prevention and control measures against AIVs.
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Affiliation(s)
- Zhiwei Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian Province, People's Republic of China
- Department of Industrial & Systems Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Zhao Lei
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian Province, People's Republic of China
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3
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Giacinti JA, Signore AV, Jones MEB, Bourque L, Lair S, Jardine C, Stevens B, Bollinger T, Goldsmith D, Pybus M, Stasiak I, Davis R, Pople N, Nituch L, Brook RW, Ojkic D, Massé A, Dimitri-Masson G, Parsons GJ, Baker M, Yason C, Harms J, Jutha N, Neely J, Berhane Y, Lung O, French SK, Myers L, Provencher JF, Avery-Gomm S, Robertson GJ, Barychka T, Gurney KEB, Wight J, Rahman I, Hargan K, Lang AS, Montevecchi WA, Burt TV, Brown MGC, Pekarik C, Thompson T, McLaughlin A, Willie M, Wilson L, Flemming SA, Ross MV, Leafloor J, Baldwin F, Sharp C, Lewis H, Beaumont M, Hanson A, Ronconi RA, Reed E, Campbell M, Saunders M, Soos C. Avian influenza viruses in wild birds in Canada following incursions of highly pathogenic H5N1 virus from Eurasia in 2021-2022. mBio 2024; 15:e0320323. [PMID: 39012149 PMCID: PMC11323545 DOI: 10.1128/mbio.03203-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 05/24/2024] [Indexed: 07/17/2024] Open
Abstract
Following the detection of novel highly pathogenic avian influenza virus (HPAIV) H5N1 clade 2.3.4.4b in Newfoundland, Canada, in late 2021, avian influenza virus (AIV) surveillance in wild birds was scaled up across Canada. Herein, we present the results of Canada's Interagency Surveillance Program for Avian Influenza in Wild Birds during the first year (November 2021-November 2022) following the incursions of HPAIV from Eurasia. The key objectives of the surveillance program were to (i) identify the presence, distribution, and spread of HPAIV and other AIVs; (ii) identify wild bird morbidity and mortality associated with HPAIV; (iii) identify the range of wild bird species infected by HPAIV; and (iv) genetically characterize detected AIV. A total of 6,246 sick and dead wild birds were tested, of which 27.4% were HPAIV positive across 12 taxonomic orders and 80 species. Geographically, HPAIV detections occurred in all Canadian provinces and territories, with the highest numbers in the Atlantic and Central Flyways. Temporally, peak detections differed across flyways, though the national peak occurred in April 2022. In an additional 11,295 asymptomatic harvested or live-captured wild birds, 5.2% were HPAIV positive across 3 taxonomic orders and 19 species. Whole-genome sequencing identified HPAIV of Eurasian origin as most prevalent in the Atlantic Flyway, along with multiple reassortants of mixed Eurasian and North American origins distributed across Canada, with moderate structuring at the flyway scale. Wild birds were victims and reservoirs of HPAIV H5N1 2.3.4.4b, underscoring the importance of surveillance encompassing samples from sick and dead, as well as live and harvested birds, to provide insights into the dynamics and potential impacts of the HPAIV H5N1 outbreak. This dramatic shift in the presence and distribution of HPAIV in wild birds in Canada highlights a need for sustained investment in wild bird surveillance and collaboration across interagency partners. IMPORTANCE We present the results of Canada's Interagency Surveillance Program for Avian Influenza in Wild Birds in the year following the first detection of highly pathogenic avian influenza virus (HPAIV) H5N1 on the continent. The surveillance program tested over 17,000 wild birds, both sick and apparently healthy, which revealed spatiotemporal and taxonomic patterns in HPAIV prevalence and mortality across Canada. The significant shift in the presence and distribution of HPAIV in Canada's wild birds underscores the need for sustained investment in wild bird surveillance and collaboration across One Health partners.
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Affiliation(s)
- Jolene A. Giacinti
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Government of Canada, Winnipeg, Manitoba, Canada
| | - Anthony V. Signore
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Megan E. B. Jones
- Canadian Wildlife Health Cooperative, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Laura Bourque
- Canadian Wildlife Health Cooperative, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Stéphane Lair
- Canadian Wildlife Health Cooperative, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada
| | - Claire Jardine
- Canadian Wildlife Health Cooperative, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Brian Stevens
- Canadian Wildlife Health Cooperative, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Trent Bollinger
- Canadian Wildlife Health Cooperative, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Dayna Goldsmith
- Canadian Wildlife Health Cooperative, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - Margo Pybus
- Alberta Environment and Parks, Edmonton, Alberta, Canada
| | - Iga Stasiak
- Saskatchewan Ministry of Environment, Saskatoon, Saskatchewan, Canada
| | - Richard Davis
- Manitoba Department of Natural Resources and Northern Development, Wildlife Branch, Dauphin, Manitoba, Canada
| | - Neil Pople
- Veterinary Diagnostic Services, Manitoba Department of Agriculture, Winnipeg, Manitoba, Canada
| | - Larissa Nituch
- Wildlife Research and Monitoring Section, Ontario Ministry of Natural Resources and Forestry, Peterborough, Ontario, Canada
| | - Rodney W. Brook
- Wildlife Research and Monitoring Section, Ontario Ministry of Natural Resources and Forestry, Peterborough, Ontario, Canada
| | - Davor Ojkic
- Animal Health Laboratory, University of Guelph, Guelph, Ontario, Canada
| | - Ariane Massé
- Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs du Québec, Québec City, Québec, Canada
| | - Gabrielle Dimitri-Masson
- Ministère de l’Agriculture, des Pêcheries et de l’Alimentation du Québec, Québec City, Québec, Canada
| | - Glen J. Parsons
- Wildlife Division, Nova Scotia Department of Natural Resources and Renewables, Kentville, Nova Scotia, Canada
| | - Meghan Baker
- Animal Health Division, Department of Fisheries, Forestry and Agriculture, Government of Newfoundland and Labrador, St. John’s, Newfoundland and Labrador, Canada
| | - Carmencita Yason
- AVC Diagnostic Services, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Jane Harms
- Animal Health Unit, Environment Yukon, Government of Yukon, Whitehorse, Yukon, Canada
| | - Naima Jutha
- Wildlife Management Division, Department of Environment and Climate Change, Government of the Northwest Territories, Yellowknife, Northwest Territories, Canada
| | - Jon Neely
- Wildlife Operations Division, Department of Environment, Government of Nunavut, Iqaluit, Nunavut, Canada
| | - Yohannes Berhane
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Oliver Lung
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Shannon K. French
- Animal Health Strategic Planning and Research, Canadian Food Inspection Agency, Ottawa, Ontario, Canada
| | - Lawrna Myers
- Animal Health Strategic Planning and Research, Canadian Food Inspection Agency, Ottawa, Ontario, Canada
| | - Jennifer F. Provencher
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Government of Canada, Winnipeg, Manitoba, Canada
| | - Stephanie Avery-Gomm
- Wildlife Research Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Mount Pearl, Newfoundland and Labrador, Canada
| | - Gregory J. Robertson
- Wildlife Research Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Mount Pearl, Newfoundland and Labrador, Canada
| | - Tatsiana Barychka
- Wildlife Research Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Mount Pearl, Newfoundland and Labrador, Canada
| | - Kirsty E. B. Gurney
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Saskatoon, Saskatchewan, Canada
| | - Jordan Wight
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
| | - Ishraq Rahman
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
| | - Kathryn Hargan
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
| | - Andrew S. Lang
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
| | - William A. Montevecchi
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
- Department of Psychology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
| | - Tori V. Burt
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
- Department of Psychology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
| | - Michael G. C. Brown
- Wildlife Management and Regulatory Affairs Division, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Gatineau, Québec, Canada
| | - Cynthia Pekarik
- Wildlife Management and Regulatory Affairs Division, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Gatineau, Québec, Canada
| | - Trevor Thompson
- Wildlife Management and Regulatory Affairs Division, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Gatineau, Québec, Canada
| | - Angela McLaughlin
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Government of Canada, Winnipeg, Manitoba, Canada
- Bioinformatics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Megan Willie
- Pacific Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Delta, British Columbia, Canada
| | - Laurie Wilson
- Pacific Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Delta, British Columbia, Canada
| | - Scott A. Flemming
- Pacific Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Delta, British Columbia, Canada
| | - Megan V. Ross
- Pacific Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Delta, British Columbia, Canada
| | - Jim Leafloor
- Prairie Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Winnipeg, Manitoba, Canada
| | - Frank Baldwin
- Prairie Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Winnipeg, Manitoba, Canada
| | - Chris Sharp
- Ontario Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Hannah Lewis
- Ontario Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Matthieu Beaumont
- Quebec Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Québec, Québec, Canada
| | - Al Hanson
- Atlantic Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Sackville, New Brunswick, Canada
| | - Robert A. Ronconi
- Atlantic Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Sackville, New Brunswick, Canada
| | - Eric Reed
- Northern Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Yellowknife, Northwest Territories, Canada
| | - Margaret Campbell
- Northern Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Whitehorse, Yukon, Canada
| | - Michelle Saunders
- Department of Lands and Natural Resources, Nunatsiavut Government, Nain, Newfoundland and Labrador, Canada
| | - Catherine Soos
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Saskatoon, Saskatchewan, Canada
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4
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Halwe NJ, Cool K, Breithaupt A, Schön J, Trujillo JD, Nooruzzaman M, Kwon T, Ahrens AK, Britzke T, McDowell CD, Piesche R, Singh G, dos Reis VP, Kafle S, Pohlmann A, Gaudreault NN, Corleis B, Ferreyra FM, Carossino M, Balasuriya UB, Hensley L, Morozov I, Covaleda LM, Diel D, Ulrich L, Hoffmann D, Beer M, Richt JA. Outcome of H5N1 clade 2.3.4.4b virus infection in calves and lactating cows. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.09.607272. [PMID: 39149352 PMCID: PMC11326275 DOI: 10.1101/2024.08.09.607272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
In March 2024, highly pathogenic avian influenza virus (HPAIV) clade 2.3.4.4b H5N1 infections in dairy cows were first reported from Texas, USA. Rapid dissemination to more than 190 farms in 13 states followed. Here, we provide results of two independent clade 2.3.4.4b experimental infection studies evaluating (i) oronasal susceptibility and transmission in calves to a US H5N1 bovine isolate genotype B3.13 (H5N1 B3.13) and (ii) susceptibility of lactating cows following direct mammary gland inoculation of either H5N1 B3.13 or a current EU H5N1 wild bird isolate genotype euDG (H5N1 euDG). Inoculation of the calves resulted in moderate nasal replication and shedding with no severe clinical signs or transmission to sentinel calves. In dairy cows, infection resulted in no nasal shedding, but severe acute mammary gland infection with necrotizing mastitis and high fever was observed for both H5N1 genotypes/strains. Milk production was rapidly and drastically reduced and the physical condition of the cows was severely compromised. Virus titers in milk rapidly peaked at 108 TCID50/mL, but systemic infection did not ensue. Notably, adaptive mutation PB2 E627K emerged after intramammary replication of H5N1 euDG. Our data suggest that in addition to H5N1 B3.13, other HPAIV H5N1 strains have the potential to replicate in the udder of cows and that milk and milking procedures, rather than respiratory spread, are likely the primary routes of H5N1 transmission between cattle.
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Affiliation(s)
- Nico Joel Halwe
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Konner Cool
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Angele Breithaupt
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Jacob Schön
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Jessie D. Trujillo
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Mohammed Nooruzzaman
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Taeyong Kwon
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Ann Kathrin Ahrens
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Tobias Britzke
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Chester D. McDowell
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Ronja Piesche
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Gagandeep Singh
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Vinicius Pinho dos Reis
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Sujan Kafle
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Natasha N. Gaudreault
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Björn Corleis
- Institute of Immunology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Franco Matias Ferreyra
- Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Mariano Carossino
- Louisiana Animal Disease Diagnostic Laboratory and Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Udeni B.R. Balasuriya
- Louisiana Animal Disease Diagnostic Laboratory and Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Lisa Hensley
- Zoonotic and Emerging Disease Research Unit, National Bio and Agro-Defense Facility, Agricultural Research Service, United States Department of Agriculture, Manhattan, KS, USA
| | - Igor Morozov
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Lina M. Covaleda
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Diego Diel
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Lorenz Ulrich
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Donata Hoffmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald, Insel Riems, Germany
| | - Juergen A. Richt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
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5
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Kang M, Wang LF, Sun BW, Wan WB, Ji X, Baele G, Bi YH, Suchard MA, Lai A, Zhang M, Wang L, Zhu YH, Ma L, Li HP, Haerheng A, Qi YR, Wang RL, He N, Su S. Zoonotic infections by avian influenza virus: changing global epidemiology, investigation, and control. THE LANCET. INFECTIOUS DISEASES 2024; 24:e522-e531. [PMID: 38878787 DOI: 10.1016/s1473-3099(24)00234-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/21/2024] [Accepted: 04/07/2024] [Indexed: 07/28/2024]
Abstract
Avian influenza virus continues to pose zoonotic, epizootic, and pandemic threats worldwide, as exemplified by the 2020-23 epizootics of re-emerging H5 genotype avian influenza viruses among birds and mammals and the fatal jump to humans of emerging A(H3N8) in early 2023. Future influenza pandemic threats are driven by extensive mutations and reassortments of avian influenza viruses rooted in frequent interspecies transmission and genetic mixing and underscore the urgent need for more effective actions. We examine the changing global epidemiology of human infections caused by avian influenza viruses over the past decade, including dramatic increases in both the number of reported infections in humans and the spectrum of avian influenza virus subtypes that have jumped to humans. We also discuss the use of advanced surveillance, diagnostic technologies, and state-of-the-art analysis methods for tracking emerging avian influenza viruses. We outline an avian influenza virus-specific application of the One Health approach, integrating enhanced surveillance, tightened biosecurity, targeted vaccination, timely precautions, and timely clinical management, and fostering global collaboration to control the threats of avian influenza viruses.
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Affiliation(s)
- Mei Kang
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China; Clinical Research Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li-Fang Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Bo-Wen Sun
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China
| | - Wen-Bo Wan
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China
| | - Xiang Ji
- Department of Mathematics, School of Science and Engineering, Tulane University, New Orleans, LA, USA
| | - Guy Baele
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory for Clinical and Epidemiological Virology, KU Leuven, Leuven, Belgium
| | - Yu-Hai Bi
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Marc A Suchard
- Department of Biostatistics, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA; Department of Biomathematics, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA, USA
| | - Alexander Lai
- School of Science, Technology, Engineering, and Mathematics, Kentucky State University, Frankfort, KY, USA
| | - Min Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Wang
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan-Hong Zhu
- Department of Scientific Research Management, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Ma
- Department of Scientific Research Management, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai-Peng Li
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China
| | - Ayidana Haerheng
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China
| | - Yang-Rui Qi
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China
| | - Rui-Lan Wang
- Department of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Na He
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China
| | - Shuo Su
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, China.
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6
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Graziosi G, Lupini C, Favera FD, Martini G, Dosa G, Trevisani G, Garavini G, Mannelli A, Catelli E. Characterizing the domestic-wild bird interface through camera traps in an area at risk for avian influenza introduction in Northern Italy. Poult Sci 2024; 103:103892. [PMID: 38865769 PMCID: PMC11223120 DOI: 10.1016/j.psj.2024.103892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/14/2024] Open
Abstract
Direct or indirect interactions between sympatric wildlife and poultry can lead to interspecies disease transmission. Particularly, avian influenza (AI) is a viral epidemic disease for which the poultry-wild bird interface shapes the risks of new viral introductions into poultry holdings. Given this background, the study hereby presented aimed to identify wild bird species in poultry house surroundings and characterize the spatiotemporal patterns of these visits. Eight camera traps were deployed for a year (January to December 2021) in 3 commercial chicken layer farms, including free-range and barn-type setups, located in a densely populated poultry area in Northern Italy at high risk for AI introduction via wild birds. Camera traps' positions were chosen based on wildlife signs identified during preliminary visits to the establishments studied. Various methods, including time series analysis, correspondence analysis, and generalized linear models, were employed to analyze the daily wild bird visits. A total of 1,958 camera trap days yielded 5,978 videos of wild birds from 27 different species and 16 taxonomic families. The animals were predominantly engaged in foraging activities nearby poultry houses. Eurasian magpies (Pica pica), ring-necked pheasants (Phasianus colchicus), and Eurasian collared doves (Streptopelia decaocto) were the most frequent visitors. Mallards (Anas platyrhynchos), an AI reservoir species, were observed only in a farm located next to a fishing sport lake. Time series analysis indicated that wild bird visits increased during spring and winter. Farm and camera trap location also influenced visit frequencies. Overall, the results highlighted specific species that could be prioritized for future AI epidemiological surveys. However, further research is required to assess their susceptibility and infectivity to currently circulating AI viruses, essential for identifying novel bridge hosts.
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Affiliation(s)
- Giulia Graziosi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, Bologna 40064, Italy.
| | - Caterina Lupini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, Bologna 40064, Italy
| | - Francesco Dalla Favera
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, Bologna 40064, Italy
| | - Gabriella Martini
- Veterinary Services, Local Health Unit of Imola (A.U.S.L. di Imola), Imola, Bologna 40026, Italy
| | - Geremia Dosa
- Veterinary Services, Local Health Unit of Imola (A.U.S.L. di Imola), Imola, Bologna 40026, Italy
| | | | - Gloria Garavini
- Veterinary Services of Eurovo Group, Imola, Bologna 40026, Italy
| | - Alessandro Mannelli
- Department of Veterinary Sciences, University of Torino, Grugliasco, Turin 10095, Italy
| | - Elena Catelli
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, Bologna 40064, Italy
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7
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McEachran MC, Harvey JA, Mummah RO, Bletz MC, Teitelbaum CS, Rosenblatt E, Rudolph FJ, Arce F, Yin S, Prosser DJ, Mosher BA, Mullinax JM, DiRenzo GV, Couret J, Runge MC, Grant EHC, Cook JD. Reframing wildlife disease management problems with decision analysis. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024; 38:e14284. [PMID: 38785034 DOI: 10.1111/cobi.14284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/30/2024] [Accepted: 02/09/2024] [Indexed: 05/25/2024]
Abstract
Contemporary wildlife disease management is complex because managers need to respond to a wide range of stakeholders, multiple uncertainties, and difficult trade-offs that characterize the interconnected challenges of today. Despite general acknowledgment of these complexities, managing wildlife disease tends to be framed as a scientific problem, in which the major challenge is lack of knowledge. The complex and multifactorial process of decision-making is collapsed into a scientific endeavor to reduce uncertainty. As a result, contemporary decision-making may be oversimplified, rely on simple heuristics, and fail to account for the broader legal, social, and economic context in which the decisions are made. Concurrently, scientific research on wildlife disease may be distant from this decision context, resulting in information that may not be directly relevant to the pertinent management questions. We propose reframing wildlife disease management challenges as decision problems and addressing them with decision analytical tools to divide the complex problems into more cognitively manageable elements. In particular, structured decision-making has the potential to improve the quality, rigor, and transparency of decisions about wildlife disease in a variety of systems. Examples of management of severe acute respiratory syndrome coronavirus 2, white-nose syndrome, avian influenza, and chytridiomycosis illustrate the most common impediments to decision-making, including competing objectives, risks, prediction uncertainty, and limited resources.
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Affiliation(s)
- Margaret C McEachran
- Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
| | - Johanna A Harvey
- Department of Environmental Science and Technology, University of Maryland, College Park, Maryland, USA
| | - Riley O Mummah
- Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
| | - Molly C Bletz
- Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
| | - Claire S Teitelbaum
- Akima Systems Engineering, Herndon, Virginia, USA
- Contractor to Eastern Ecological Science Center at Patuxent Research Refuge, U.S. Geological Survey, Laurel, Maryland, USA
| | - Elias Rosenblatt
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, Vermont, USA
| | - F Javiera Rudolph
- Department of Ecosystem Sciences and Management, Pennsylvania State University, Center Valley, Pennsylvania, USA
| | - Fernando Arce
- Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
- Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Starkville, Mississippi, USA
| | - Shenglai Yin
- School of Biological Sciences, Center for Earth Observation and Modeling, University of Oklahoma, Norman, Oklahoma, USA
| | - Diann J Prosser
- Eastern Ecological Science Center at Patuxent Research Refuge, U.S. Geological Survey, Laurel, Maryland, USA
| | - Brittany A Mosher
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, Vermont, USA
| | - Jennifer M Mullinax
- Department of Environmental Science and Technology, University of Maryland, College Park, Maryland, USA
| | - Graziella V DiRenzo
- Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
- Massachusetts Cooperative Fish and Wildlife Research Unit, U.S. Geological Survey, University of Massachusetts, Amherst, Massachusetts, USA
| | - Jannelle Couret
- Department of Biological Sciences, University of Rhode Island, Kingston, Rhode Island, USA
| | - Michael C Runge
- Eastern Ecological Science Center at Patuxent Research Refuge, U.S. Geological Survey, Laurel, Maryland, USA
| | - Evan H Campbell Grant
- Eastern Ecological Science Center at the S.O. Conte Research Laboratory, U.S. Geological Survey, Turners Falls, Massachusetts, USA
| | - Jonathan D Cook
- Eastern Ecological Science Center at Patuxent Research Refuge, U.S. Geological Survey, Laurel, Maryland, USA
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8
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Erdelyan CNG, Kandeil A, Signore AV, Jones MEB, Vogel P, Andreev K, Bøe CA, Gjerset B, Alkie TN, Yason C, Hisanaga T, Sullivan D, Lung O, Bourque L, Ayilara I, Pama L, Jeevan T, Franks J, Jones JC, Seiler JP, Miller L, Mubareka S, Webby RJ, Berhane Y. Multiple transatlantic incursions of highly pathogenic avian influenza clade 2.3.4.4b A(H5N5) virus into North America and spillover to mammals. Cell Rep 2024; 43:114479. [PMID: 39003741 DOI: 10.1016/j.celrep.2024.114479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/31/2024] [Accepted: 06/25/2024] [Indexed: 07/16/2024] Open
Abstract
Highly pathogenic avian influenza (HPAI) viruses have spread at an unprecedented scale, leading to mass mortalities in birds and mammals. In 2023, a transatlantic incursion of HPAI A(H5N5) viruses into North America was detected, followed shortly thereafter by a mammalian detection. As these A(H5N5) viruses were similar to contemporary viruses described in Eurasia, the transatlantic spread of A(H5N5) viruses was most likely facilitated by pelagic seabirds. Some of the Canadian A(H5N5) viruses from birds and mammals possessed the PB2-E627K substitution known to facilitate adaptation to mammals. Ferrets inoculated with A(H5N5) viruses showed rapid, severe disease onset, with some evidence of direct contact transmission. However, these viruses have maintained receptor binding traits of avian influenza viruses and were susceptible to oseltamivir and zanamivir. Understanding the factors influencing the virulence and transmission of A(H5N5) in migratory birds and mammals is critical to minimize impacts on wildlife and public health.
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Affiliation(s)
| | - Ahmed Kandeil
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Anthony V Signore
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada
| | - Megan E B Jones
- Canadian Wildlife Health Cooperative, Atlantic Region, Charlottetown, PEI C1A 4P3, Canada
| | - Peter Vogel
- Comparative Pathology Core, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Konstantin Andreev
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | | | | | - Tamiru N Alkie
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada
| | - Carmencita Yason
- Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
| | - Tamiko Hisanaga
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada
| | - Daniel Sullivan
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada
| | - Oliver Lung
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada; Department of Biological Sciences, University of Manitoba, Winnipeg, MB R3T 2M5, Canada
| | - Laura Bourque
- Canadian Wildlife Health Cooperative, Atlantic Region, Charlottetown, PEI C1A 4P3, Canada
| | - Ifeoluwa Ayilara
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada
| | - Lemarie Pama
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada
| | - Trushar Jeevan
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - John Franks
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Jeremy C Jones
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Jon P Seiler
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Lance Miller
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Samira Mubareka
- Sunnybrook Research Institute, Toronto, ON M4N 3M5, Canada; Department of Laboratory Medicine and Pathobiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Richard J Webby
- Department of Pathology and Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38105, USA.
| | - Yohannes Berhane
- National Centre for Foreign Animal Disease, Winnipeg, MB R3E 3M4, Canada; Department of Animal Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada.
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9
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Burrough ER, Magstadt DR, Petersen B, Timmermans SJ, Gauger PC, Zhang J, Siepker C, Mainenti M, Li G, Thompson AC, Gorden PJ, Plummer PJ, Main R. Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus Infection in Domestic Dairy Cattle and Cats, United States, 2024. Emerg Infect Dis 2024; 30:1335-1343. [PMID: 38683888 PMCID: PMC11210653 DOI: 10.3201/eid3007.240508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Abstract
We report highly pathogenic avian influenza A(H5N1) virus in dairy cattle and cats in Kansas and Texas, United States, which reflects the continued spread of clade 2.3.4.4b viruses that entered the country in late 2021. Infected cattle experienced nonspecific illness, reduced feed intake and rumination, and an abrupt drop in milk production, but fatal systemic influenza infection developed in domestic cats fed raw (unpasteurized) colostrum and milk from affected cows. Cow-to-cow transmission appears to have occurred because infections were observed in cattle on Michigan, Idaho, and Ohio farms where avian influenza virus-infected cows were transported. Although the US Food and Drug Administration has indicated the commercial milk supply remains safe, the detection of influenza virus in unpasteurized bovine milk is a concern because of potential cross-species transmission. Continued surveillance of highly pathogenic avian influenza viruses in domestic production animals is needed to prevent cross-species and mammal-to-mammal transmission.
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10
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Nelli RK, Harm TA, Siepker C, Groeltz-Thrush JM, Jones B, Twu NC, Nenninger AS, Magstadt DR, Burrough ER, Piñeyro PE, Mainenti M, Carnaccini S, Plummer PJ, Bell TM. Sialic Acid Receptor Specificity in Mammary Gland of Dairy Cattle Infected with Highly Pathogenic Avian Influenza A(H5N1) Virus. Emerg Infect Dis 2024; 30:1361-1373. [PMID: 38861554 PMCID: PMC11210646 DOI: 10.3201/eid3007.240689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024] Open
Abstract
In March 2024, the US Department of Agriculture's Animal and Plant Health Inspection Service reported detection of highly pathogenic avian influenza (HPAI) A(H5N1) virus in dairy cattle in the United States for the first time. One factor that determines susceptibility to HPAI H5N1 infection is the presence of specific virus receptors on host cells; however, little is known about the distribution of the sialic acid (SA) receptors in dairy cattle, particularly in mammary glands. We compared the distribution of SA receptors in the respiratory tract and mammary gland of dairy cattle naturally infected with HPAI H5N1. The respiratory and mammary glands of HPAI H5N1-infected dairy cattle are rich in SA, particularly avian influenza virus-specific SA α2,3-gal. Mammary gland tissues co-stained with sialic acids and influenza A virus nucleoprotein showed predominant co-localization with the virus and SA α2,3-gal. HPAI H5N1 exhibited epitheliotropism within the mammary gland, and we observed rare immunolabeling within macrophages.
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11
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Provencher JF, Brown MGC, Hargan K, Lang AS, Lapen D, Lewis H, Mallory ML, Michelin R, Mitchell GW, Rahman I, Sharp C, Shikaze S, Wight J. Pathogen Surveillance in Swallows (family Hirundinidae): Investigation into Role as Avian Influenza Vector in Eastern Canada Agricultural Landscapes. J Wildl Dis 2024; 60:763-768. [PMID: 38666308 DOI: 10.7589/jwd-d-23-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/16/2024] [Indexed: 07/09/2024]
Abstract
First detected in Atlantic Canada in December 2021, highly pathogenic avian influenza virus (HPAIV) subtype H5N1 clade 2.3.4.4b, A/Goose/Guangdong/1/96 lineage, has caused massive mortality in wild birds and domestic poultry in North America. Swallows (Hirundinidae), abundant in North American agricultural ecosystems, have been proposed as possible (bridge) species for HPAIV transmission between wild and domestic birds. We aimed to seek evidence of the potential role of swallows in bridging AIV infection between wild bird reservoirs and poultry flocks in eastern Canada. During a wide-scale outbreak of HPAIV in wild birds and poultry farms across eastern Canada, 200 samples were collected from swallow breeding sites in the Canadian provinces of New Brunswick, Nova Scotia, Ontario, and Quebec, June-August 2022. Samples came from Barn Swallow (Hirundo rustica; n=142), Tree Swallow (Tachycineta bicolor; n=56), and Cliff Swallow (Petrochelidon pyrrhonota; n=2) nests. All samples tested negative for AIV, suggesting that HPAIV and low pathogenic AIV (LPAIV) strains were probably not circulating widely in swallows during the 2022 breeding season in eastern Canada; thus swallows may present a low risk of transmitting AIV. Within a management context, these findings suggest that removing nests of Barn Swallows, a species at risk in Canada, from the exterior of biosecure domestic poultry facilities may not significantly reduce risks of HPAI transmission to poultry.
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Affiliation(s)
- Jennifer F Provencher
- Environment and Climate Change Canada, Science and Technology Branch, National Wildlife Research Centre, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1A 0H3, Canada
| | - Michael G C Brown
- Environment and Climate Change Canada, Canadian Wildlife Service, Wildlife Management and Regulatory Affairs Division, 351 Boulevard Saint-Joseph, Gatineau, Québec J8Y 3Z5, Canada
| | - Kathryn Hargan
- Department of Biology, Memorial University of Newfoundland, 45 Arctic Avenue, St. John's, Newfoundland and Labrador A1C 5S7, Canada
| | - Andrew S Lang
- Department of Biology, Memorial University of Newfoundland, 45 Arctic Avenue, St. John's, Newfoundland and Labrador A1C 5S7, Canada
| | - David Lapen
- Ottawa Research Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario K1A 0C6, Canada
| | - Hannah Lewis
- Environment and Climate Change Canada, Canadian Wildlife Service, Ontario Region, 335 River Road, Ottawa, Ontario K1V 1C7, Canada
| | - Mark L Mallory
- Department of Biology, Acadia University, 15 University Drive, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Rebecca Michelin
- Environment and Climate Change Canada, Canadian Wildlife Service, Wildlife Management and Regulatory Affairs Division, 351 Boulevard Saint-Joseph, Gatineau, Québec J8Y 3Z5, Canada
| | - Greg W Mitchell
- Environment and Climate Change Canada, Science and Technology Branch, National Wildlife Research Centre, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1A 0H3, Canada
| | - Ishraq Rahman
- Department of Biology, Memorial University of Newfoundland, 45 Arctic Avenue, St. John's, Newfoundland and Labrador A1C 5S7, Canada
| | - Chris Sharp
- Environment and Climate Change Canada, Canadian Wildlife Service, Ontario Region, 335 River Road, Ottawa, Ontario K1V 1C7, Canada
| | - Stephen Shikaze
- Environment and Climate Change Canada, Canadian Wildlife Service, Wildlife Management and Regulatory Affairs Division, 351 Boulevard Saint-Joseph, Gatineau, Québec J8Y 3Z5, Canada
| | - Jordan Wight
- Department of Biology, Memorial University of Newfoundland, 45 Arctic Avenue, St. John's, Newfoundland and Labrador A1C 5S7, Canada
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12
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Gadzhiev A, Petherbridge G, Sharshov K, Sobolev I, Alekseev A, Gulyaeva M, Litvinov K, Boltunov I, Teymurov A, Zhigalin A, Daudova M, Shestopalov A. Pinnipeds and avian influenza: a global timeline and review of research on the impact of highly pathogenic avian influenza on pinniped populations with particular reference to the endangered Caspian seal ( Pusa caspica). Front Cell Infect Microbiol 2024; 14:1325977. [PMID: 39071164 PMCID: PMC11273096 DOI: 10.3389/fcimb.2024.1325977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 05/21/2024] [Indexed: 07/30/2024] Open
Abstract
This study reviews chronologically the international scientific and health management literature and resources relating to impacts of highly pathogenic avian influenza (HPAI) viruses on pinnipeds in order to reinforce strategies for the conservation of the endangered Caspian seal (Pusa caspica), currently under threat from the HPAI H5N1 subtype transmitted from infected avifauna which share its haul-out habitats. Many cases of mass pinniped deaths globally have occurred from HPAI spill-overs, and are attributed to infected sympatric aquatic avifauna. As the seasonal migrations of Caspian seals provide occasions for contact with viruses from infected migratory aquatic birds in many locations around the Caspian Sea, this poses a great challenge to seal conservation. These are thus critical locations for the surveillance of highly pathogenic influenza A viruses, whose future reassortments may present a pandemic threat to humans.
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Affiliation(s)
- Alimurad Gadzhiev
- Institute of Ecology and Sustainable Development, Dagestan State University, Makhachkala, Russia
| | - Guy Petherbridge
- Institute of Ecology and Sustainable Development, Dagestan State University, Makhachkala, Russia
- Caspian Centre for Nature Conservation, International Institute of Ecology and Sustainable Development, Association of Universities and Research Centers of Caspian Region States, Makhachkala, Russia
| | - Kirill Sharshov
- Research Institute of Virology, Federal Research Centre for Fundamental and Translational Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| | - Ivan Sobolev
- Research Institute of Virology, Federal Research Centre for Fundamental and Translational Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander Alekseev
- Institute of Ecology and Sustainable Development, Dagestan State University, Makhachkala, Russia
- Research Institute of Virology, Federal Research Centre for Fundamental and Translational Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| | - Marina Gulyaeva
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Kirill Litvinov
- Laboratory of Ecological and Biological Research, Astrakhan State Nature Biosphere Reserve, Astrakhan, Russia
| | - Ivan Boltunov
- Department of Vertebrate Zoology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Abdulgamid Teymurov
- Institute of Ecology and Sustainable Development, Dagestan State University, Makhachkala, Russia
| | - Alexander Zhigalin
- Institute of Ecology and Sustainable Development, Dagestan State University, Makhachkala, Russia
| | - Madina Daudova
- Institute of Ecology and Sustainable Development, Dagestan State University, Makhachkala, Russia
| | - Alexander Shestopalov
- Research Institute of Virology, Federal Research Centre for Fundamental and Translational Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
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13
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Lee LKF, Hipfner JM, Frankfurter G, Cray C, Pearson SF, Fiorello C, Clyde NMT, Hudson SA, Parker SE, Stallknecht DE, Furst E, Haman KH. Baseline health parameters of rhinoceros auklets ( Cerorhinca monocerata) using serum protein electrophoresis, acute phase proteins, and biochemistry. Front Vet Sci 2024; 11:1379980. [PMID: 38983768 PMCID: PMC11231077 DOI: 10.3389/fvets.2024.1379980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/20/2024] [Indexed: 07/11/2024] Open
Abstract
Clinical metrics of baseline health in sentinel seabird species can offer insight into marine ecosystem dynamics, individual and population health, and assist in wildlife rehabilitation and conservation efforts. Protein electrophoresis is useful for detecting changes in acute phase proteins and immunoglobulin levels that may indicate subtle inflammatory responses and/or infectious disease. Serum biochemistry can highlight nutritional status, metabolic derangements, and organ injury and function. However, baseline values for such health parameters are largely unknown for many seabird species. Therefore, the objective of this study is to establish baseline clinical health reference intervals for serum protein electrophoresis, acute phase proteins including serum amyloid A and haptoglobin, and biochemistry parameters in the rhinoceros auklet (Cerorhinca monocerata), a key sentinel species in the North Pacific. From 2013 to 2019, 178 wild, apparently healthy breeding adult rhinoceros auklets were captured across four breeding colonies in British Columbia, Canada (Lucy Island, Pine Island, Triangle Islands, and SGang Gwaay) and from one colony in Washington, United States (Protection Island). Reference intervals were calculated for protein electrophoresis fractions and acute phase proteins (n = 163), and serum biochemistry (n = 35) following established guidelines by the American Society of Veterinary Clinical Pathology. Animals were also assessed for the presence of antibodies to the influenza A virus. Approximately 48% (70/147) of sampled birds were seropositive for influenza A virus, with a prevalence of 50% (6/12) in 2013, 75% (47/63) in 2014, and 24% (17/72) in 2019. This work provides clinical baseline health metrics of a key North Pacific sentinel species to help inform marine ecosystem monitoring, recovery, and rehabilitation efforts in the Pacific Northwest.
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Affiliation(s)
- Lisa K F Lee
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - J Mark Hipfner
- Wildlife Research Division, Environment and Climate Change Canada, Delta, BC, Canada
| | - Greg Frankfurter
- School of Veterinary Medicine, Karen C. Drayer Wildlife Health Center, Davis, CA, United States
| | - Carolyn Cray
- Division of Comparative Pathology, Department of Pathology and Laboratory Medicine, Miller School of Medicine, Miami, FL, United States
| | - Scott F Pearson
- Wildlife Program, Science Division, Washington Department of Fish and Wildlife, Olympia, WA, United States
| | | | - Nikolas M T Clyde
- Wildlife Research Division, Environment and Climate Change Canada, Delta, BC, Canada
| | - Sarah A Hudson
- Wildlife Research Division, Environment and Climate Change Canada, Delta, BC, Canada
| | - Sarah E Parker
- Centre for Applied Epidemiology, Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - David E Stallknecht
- Department of Population Health, Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
| | | | - Katherine H Haman
- Wildlife Program, Science Division, Washington Department of Fish and Wildlife, Olympia, WA, United States
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14
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Prosser DJ, Kent CM, Sullivan JD, Patyk KA, McCool MJ, Torchetti MK, Lantz K, Mullinax JM. Using an adaptive modeling framework to identify avian influenza spillover risk at the wild-domestic interface. Sci Rep 2024; 14:14199. [PMID: 38902400 PMCID: PMC11189914 DOI: 10.1038/s41598-024-64912-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024] Open
Abstract
The wild to domestic bird interface is an important nexus for emergence and transmission of highly pathogenic avian influenza (HPAI) viruses. Although the recent incursion of HPAI H5N1 Clade 2.3.4.4b into North America calls for emergency response and planning given the unprecedented scale, readily available data-driven models are lacking. Here, we provide high resolution spatial and temporal transmission risk models for the contiguous United States. Considering virus host ecology, we included weekly species-level wild waterfowl (Anatidae) abundance and endemic low pathogenic avian influenza virus prevalence metrics in combination with number of poultry farms per commodity type and relative biosecurity risks at two spatial scales: 3 km and county-level. Spillover risk varied across the annual cycle of waterfowl migration and some locations exhibited persistent risk throughout the year given higher poultry production. Validation using wild bird introduction events identified by phylogenetic analysis from 2022 to 2023 HPAI poultry outbreaks indicate strong model performance. The modular nature of our approach lends itself to building upon updated datasets under evolving conditions, testing hypothetical scenarios, or customizing results with proprietary data. This research demonstrates an adaptive approach for developing models to inform preparedness and response as novel outbreaks occur, viruses evolve, and additional data become available.
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Affiliation(s)
- Diann J Prosser
- U.S. Geological Survey, Eastern Ecological Science Center, Laurel, MD, 20708, USA.
| | - Cody M Kent
- Volunteer to the U.S. Geological Survey, Eastern Ecological Science Center, Laurel, MD, 20708, USA
- Department of Environmental Science and Technology, University of Maryland, College Park, MD, 20742, USA
- Department of Biology, Frostburg State University, Frostburg, MD, 21532, USA
| | - Jeffery D Sullivan
- U.S. Geological Survey, Eastern Ecological Science Center, Laurel, MD, 20708, USA
| | - Kelly A Patyk
- U.S. Department of Agriculture, Animal Plant and Health Inspection Service, Veterinary Services, Strategy and Policy, Center for Epidemiology and Animal Health, Fort Collins, CO, 80521, USA
| | - Mary-Jane McCool
- U.S. Department of Agriculture, Animal Plant and Health Inspection Service, Veterinary Services, Strategy and Policy, Center for Epidemiology and Animal Health, Fort Collins, CO, 80521, USA
| | - Mia Kim Torchetti
- National Veterinary Services Laboratories, Animal and Plant Health Inspection Service, USDA, Ames, IA, 50010, USA
| | - Kristina Lantz
- National Veterinary Services Laboratories, Animal and Plant Health Inspection Service, USDA, Ames, IA, 50010, USA
| | - Jennifer M Mullinax
- Department of Environmental Science and Technology, University of Maryland, College Park, MD, 20742, USA
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15
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Franzo G, Legnardi M, Faustini G, Baston R, Poletto F, Cecchinato M, Tucciarone CM. Tracing the Flight: Investigating the Introduction of Avian Metapneumovirus (aMPV) A and B. Animals (Basel) 2024; 14:1786. [PMID: 38929405 PMCID: PMC11200574 DOI: 10.3390/ani14121786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Avian metapneumovirus (aMPV) has been identified as an important cause of respiratory and reproductive disease, leading to significant productive losses worldwide. Different subtypes have been found to circulate in different regions, with aMPV-A and B posing a significant burden especially in the Old World, and aMPV-C in North America, albeit with limited exceptions of marginal economic relevance. Recently, both aMPV-A and aMPV-B have been reported in the U.S.; however, the route of introduction has not been investigated. In the present study, the potential importation pathways have been studied through phylogenetic and phylodynamic analyses based on a broad collection of partial attachment (G) protein sequences collected worldwide. aMPV-B circulating in the U.S. seems the descendant of Eastern Asian strains, which, in turn, are related to European ones. A likely introduction pathway mediated by wild bird migration through the Beringian crucible, where the East Asian and Pacific American flight paths intersect, appears likely and was previously reported for avian influenza. aMPV-A, on the other hand, showed a Mexican origin, involving strains related to Asian ones. Given the low likelihood of trade or illegal importation, the role of wild birds appears probable also in this case, since the region is covered by different flight paths directed in a North-South direction through America. Since the information on the role of wild birds in aMPV epidemiology is still scarce and scattered, considering the significant practical implications for the poultry industry demonstrated by recent U.S. outbreaks, further surveys on wild birds are encouraged.
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Affiliation(s)
- Giovanni Franzo
- Department of Animal Medicine, Production and Health, University of Padova, 35020 Legnaro, Italy; (M.L.); (G.F.); (R.B.); (F.P.); (M.C.); (C.M.T.)
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16
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Meade PS, Bandawane P, Bushfield K, Hoxie I, Azcona KR, Burgos D, Choudhury S, Diaby A, Diallo M, Gaynor K, Huang A, Kante K, Khan SN, Kim W, Ajayi PK, Roubidoux E, Nelson S, McMahon R, Albrecht RA, Krammer F, Marizzi C. Detection of clade 2.3.4.4b highly pathogenic H5N1 influenza virus in New York City. J Virol 2024; 98:e0062624. [PMID: 38747601 PMCID: PMC11237497 DOI: 10.1128/jvi.00626-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 05/28/2024] Open
Abstract
Highly pathogenic avian influenza viruses of the H5N1 clade 2.3.4.4b were detected in North America in the winter of 2021/2022. These viruses have spread across the Americas, causing morbidity and mortality in both wild and domestic birds as well as some mammalian species, including cattle. Many surveillance programs for wildlife as well as commercial poultry operations have detected these viruses. In this study, we conducted surveillance of avian species in the urban environment in New York City. We detected highly pathogenic H5N1 viruses in six samples from four different bird species and performed whole-genome sequencing. Sequencing analysis showed the presence of multiple different genotypes. Our work highlights that the interface between animals and humans that may give rise to zoonotic infections or even pandemics is not limited to rural environments and commercial poultry operations but extends into the heart of our urban centers.IMPORTANCEWhile surveillance programs for avian influenza viruses are often focused on migratory routes and their associated stop-over locations or commercial poultry operations, many bird species-including migratory birds-frequent or live in urban green spaces and wetlands. This brings them into contact with a highly dense population of humans and pets, providing an extensive urban animal-human interface in which the general public may have little awareness of circulating infectious diseases. This study focuses on virus surveillance of this interface, combined with culturally responsive science education and community outreach.
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Affiliation(s)
- Philip S. Meade
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Pooja Bandawane
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kaitlyn Bushfield
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Irene Hoxie
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Karla R. Azcona
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Daneidy Burgos
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Sadia Choudhury
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Adama Diaby
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Mariama Diallo
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Kailani Gaynor
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Aaron Huang
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Kadiatou Kante
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - Shehryar N. Khan
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | - William Kim
- New York City Virus Hunters Program, BioBus, New York, New York, USA
| | | | - Ericka Roubidoux
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Sasha Nelson
- Animal Care Centers of New York, New York, New York, USA
| | | | - Randy A. Albrecht
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- The Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Pathology, Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Ignaz Semmelweis Institute, Interuniversity Institute for Infection Research, Medical University of Vienna, Vienna, Austria
| | - Christine Marizzi
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- New York City Virus Hunters Program, BioBus, New York, New York, USA
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17
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Stanislawek WL, Tana T, Rawdon TG, Cork SC, Chen K, Fatoyinbo H, Cogger N, Webby RJ, Webster RG, Joyce M, Tuboltsev MA, Orr D, Ohneiser S, Watts J, Riegen AC, McDougall M, Klee D, O’Keefe JS. Avian influenza viruses in New Zealand wild birds, with an emphasis on subtypes H5 and H7: Their distinctive epidemiology and genomic properties. PLoS One 2024; 19:e0303756. [PMID: 38829903 PMCID: PMC11146706 DOI: 10.1371/journal.pone.0303756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 04/30/2024] [Indexed: 06/05/2024] Open
Abstract
The rapid spread of highly pathogenic avian influenza (HPAI) A (H5N1) viruses in Southeast Asia in 2004 prompted the New Zealand Ministry for Primary Industries to expand its avian influenza surveillance in wild birds. A total of 18,693 birds were sampled between 2004 and 2020, including migratory shorebirds (in 2004-2009), other coastal species (in 2009-2010), and resident waterfowl (in 2004-2020). No avian influenza viruses (AIVs) were isolated from cloacal or oropharyngeal samples from migratory shorebirds or resident coastal species. Two samples from red knots (Calidris canutus) tested positive by influenza A RT-qPCR, but virus could not be isolated and no further characterization could be undertaken. In contrast, 6179 samples from 15,740 mallards (Anas platyrhynchos) tested positive by influenza A RT-qPCR. Of these, 344 were positive for H5 and 51 for H7. All H5 and H7 viruses detected were of low pathogenicity confirmed by a lack of multiple basic amino acids at the hemagglutinin (HA) cleavage site. Twenty H5 viruses (six different neuraminidase [NA] subtypes) and 10 H7 viruses (two different NA subtypes) were propagated and characterized genetically. From H5- or H7-negative samples that tested positive by influenza A RT-qPCR, 326 AIVs were isolated, representing 41 HA/NA combinations. The most frequently isolated subtypes were H4N6, H3N8, H3N2, and H10N3. Multivariable logistic regression analysis of the relations between the location and year of sampling, and presence of AIV in individual waterfowl showed that the AIV risk at a given location varied from year to year. The H5 and H7 isolates both formed monophyletic HA groups. The H5 viruses were most closely related to North American lineages, whereas the H7 viruses formed a sister cluster relationship with wild bird viruses of the Eurasian and Australian lineages. Bayesian analysis indicates that the H5 and H7 viruses have circulated in resident mallards in New Zealand for some time. Correspondingly, we found limited evidence of influenza viruses in the major migratory bird populations visiting New Zealand. Findings suggest a low probability of introduction of HPAI viruses via long-distance bird migration and a unique epidemiology of AIV in New Zealand.
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Affiliation(s)
| | - Toni Tana
- Ministry for Primary Industries, Upper Hutt, New Zealand
| | | | - Susan C. Cork
- Department of Ecosystem & Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kylie Chen
- Department of Computational Biology, University of Auckland, Auckland, New Zealand
| | - Hammed Fatoyinbo
- EpiCentre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Naomi Cogger
- EpiCentre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Richard J. Webby
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Robert G. Webster
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Maree Joyce
- Ministry for Primary Industries, Upper Hutt, New Zealand
| | | | - Della Orr
- Ministry for Primary Industries, Upper Hutt, New Zealand
| | | | - Jonathan Watts
- Ministry for Primary Industries, Upper Hutt, New Zealand
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18
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Bordes L, Gerhards NM, Peters S, van Oort S, Roose M, Dresken R, Venema S, Vrieling M, Engelsma M, van der Poel WH, de Swart RL. H5N1 clade 2.3.4.4b avian influenza viruses replicate in differentiated bovine airway epithelial cells cultured at air-liquid interface. J Gen Virol 2024; 105:002007. [PMID: 38922678 PMCID: PMC11256440 DOI: 10.1099/jgv.0.002007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
Highly pathogenic avian influenza (HPAI) H5N1 viruses are responsible for disease outbreaks in wild birds and poultry, resulting in devastating losses to the poultry sector. Since 2020, an increasing number of outbreaks of HPAI H5N1 was seen in wild birds. Infections in mammals have become more common, in most cases in carnivores after direct contact with infected birds. Although ruminants were previously not considered a host species for HPAI viruses, in March 2024 multiple outbreaks of HPAI H5N1 were detected in goats and cattle in the United States. Here, we have used primary bronchus-derived well-differentiated bovine airway epithelial cells (WD-AECs) cultured at air-liquid interface to assess the susceptibility and permissiveness of bovine epithelial cells to infection with European H5N1 virus isolates. We inoculated bovine WD-AECs with three low-passage HPAI clade 2.3.4.4b H5N1 virus isolates and detected rapid increases in viral genome loads and infectious virus during the first 24 h post-inoculation, without substantial cytopathogenic effects. Three days post-inoculation infected cells were still detectable by immunofluorescent staining. These data indicate that multiple lineages of HPAI H5N1 may have the propensity to infect the respiratory tract of cattle and support extension of avian influenza surveillance efforts to ruminants. Furthermore, this study underscores the benefit of WD-AEC cultures for pandemic preparedness by providing a rapid and animal-free assessment of the host range of an emerging pathogen.
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Affiliation(s)
- Luca Bordes
- Wageningen Bioveterinary Research, Lelystad, Netherlands
| | | | - Stan Peters
- Wageningen Bioveterinary Research, Lelystad, Netherlands
| | | | - Marit Roose
- Wageningen Bioveterinary Research, Lelystad, Netherlands
| | - Romy Dresken
- Wageningen Bioveterinary Research, Lelystad, Netherlands
| | - Sandra Venema
- Wageningen Bioveterinary Research, Lelystad, Netherlands
| | | | - Marc Engelsma
- Wageningen Bioveterinary Research, Lelystad, Netherlands
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19
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Lin S, Chen J, Li K, Liu Y, Fu S, Xie S, Zha A, Xin A, Han X, Shi Y, Xu L, Liao M, Jia W. Evolutionary dynamics and comparative pathogenicity of clade 2.3.4.4b H5 subtype avian influenza viruses, China, 2021-2022. Virol Sin 2024; 39:358-368. [PMID: 38679333 PMCID: PMC11280280 DOI: 10.1016/j.virs.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 04/18/2024] [Indexed: 05/01/2024] Open
Abstract
The recent concurrent emergence of H5N1, H5N6, and H5N8 avian influenza viruses (AIVs) has led to significant avian mortality globally. Since 2020, frequent human-animal interactions have been documented. To gain insight into the novel H5 subtype AIVs (i.e., H5N1, H5N6 and H5N8), we collected 6102 samples from various regions of China between January 2021 and September 2022, and identified 41 H5Nx strains. Comparative analyses on the evolution and biological properties of these isolates were conducted. Phylogenetic analysis revealed that the 41 H5Nx strains belonged to clade 2.3.4.4b, with 13 related to H5N1, 19 to H5N6, and 9 to H5N8. Analysis based on global 2.3.4.4b viruses showed that all the viruses described in this study were likely originated from H5N8, exhibiting a heterogeneous evolutionary history between H5N1 and H5N6 during 2015-2022 worldwide. H5N1 showed a higher rate of evolution in 2021-2022 and more sites under positive selection pressure in 2015-2022. The antigenic profiles of the novel H5N1 and H5N6 exhibited notable variations. Further hemagglutination inhibition assay suggested that some A(H5N1) viruses may be antigenically distinct from the circulating H5N6 and H5N8 strains. Mammalian challenge assays demonstrated that the H5N8 virus (21GD001_H5N8) displayed the highest pathogenicity in mice, followed by the H5N1 virus (B1557_H5N1) and then the H5N6 virus (220086_H5N6), suggesting a heterogeneous virulence profile of H5 AIVs in the mammalian hosts. Based on the above results, we speculate that A(H5N1) viruses have a higher risk of emergence in the future. Collectively, these findings unveil a new landscape of different evolutionary history and biological characteristics of novel H5 AIVs in clade 2.3.4.4b, contributing to a better understanding of designing more effective strategies for the prevention and control of novel H5 AIVs.
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MESH Headings
- Animals
- China/epidemiology
- Phylogeny
- Influenza in Birds/virology
- Influenza in Birds/epidemiology
- Evolution, Molecular
- Mice
- Influenza A Virus, H5N1 Subtype/genetics
- Influenza A Virus, H5N1 Subtype/pathogenicity
- Influenza A Virus, H5N1 Subtype/classification
- Influenza A Virus, H5N1 Subtype/isolation & purification
- Influenza A Virus, H5N8 Subtype/genetics
- Influenza A Virus, H5N8 Subtype/pathogenicity
- Influenza A Virus, H5N8 Subtype/classification
- Influenza A Virus, H5N8 Subtype/isolation & purification
- Virulence
- Influenza A virus/genetics
- Influenza A virus/pathogenicity
- Influenza A virus/classification
- Chickens/virology
- Mice, Inbred BALB C
- Female
- Birds/virology
- Humans
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Affiliation(s)
- Siru Lin
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Junhong Chen
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Ke Li
- Institute of Poultry Management and Diseases, Yunnan Animal Science and Veterinary Institute, Kunming, 650000, China
| | - Yang Liu
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Siyuan Fu
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Shumin Xie
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Aimin Zha
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Aiguo Xin
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Xinyu Han
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Yuting Shi
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Lingyu Xu
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Ming Liao
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou, 510642, China.
| | - Weixin Jia
- National Avian Influenza Para-Reference Laboratory, Guangdong Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou, 510642, China.
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20
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Lair S, Quesnel L, Signore AV, Delnatte P, Embury-Hyatt C, Nadeau MS, Lung O, Ferrell ST, Michaud R, Berhane Y. Outbreak of Highly Pathogenic Avian Influenza A(H5N1) Virus in Seals, St. Lawrence Estuary, Quebec, Canada 1. Emerg Infect Dis 2024; 30:1133-1143. [PMID: 38781927 PMCID: PMC11138997 DOI: 10.3201/eid3006.231033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024] Open
Abstract
We describe an unusual mortality event caused by a highly pathogenic avian influenza (HPAI) A(H5N1) virus clade 2.3.4.4b involving harbor (Phoca vitulina) and gray (Halichoerus grypus) seals in the St. Lawrence Estuary, Quebec, Canada, in 2022. Fifteen (56%) of the seals submitted for necropsy were considered to be fatally infected by HPAI H5N1 containing fully Eurasian or Eurasian/North American genome constellations. Concurrently, presence of large numbers of bird carcasses infected with HPAI H5N1 at seal haul-out sites most likely contributed to the spillover of infection to the seals. Histologic changes included meningoencephalitis (100%), fibrinosuppurative alveolitis, and multiorgan acute necrotizing inflammation. This report of fatal HPAI H5N1 infection in pinnipeds in Canada raises concerns about the expanding host of this virus, the potential for the establishment of a marine mammal reservoir, and the public health risks associated with spillover to mammals.Nous décrivons un événement de mortalité inhabituelle causé par un virus de l'influenza aviaire hautement pathogène A(H5N1) clade 2.3.4.4b chez des phoques communs (Phoca vitulina) et gris (Halichoerus grypus) dans l'estuaire du Saint-Laurent au Québec, Canada, en 2022. Quinze (56%) des phoques soumis pour nécropsie ont été considérés comme étant fatalement infectés par le virus H5N1 de lignées eurasiennes ou de réassortiment eurasiennes/nord-américaines. Un grand nombre simultané de carcasses d'oiseaux infectés par le H5N1 sur les sites d'échouement a probablement contribué à la contamination de ces phoques. Les changements histologiques associés à cette infection incluaient : méningo-encéphalite (100%), alvéolite fibrinosuppurée et inflammation nécrosante aiguë multi-organique. Cette documentation soulève des préoccupations quant à l'émergence de virus mortels, à la possibilité d'établissement de réservoirs chez les mammifères marins, et aux risques pour la santé publique associés aux propagations du virus chez les mammifères.
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21
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Shemmings-Payne W, De Silva D, Warren CJ, Thomas S, Slomka MJ, Reid SM, James J, Banyard AC, Brown IH, Ward AI. Repeatability and reproducibility of hunter-harvest sampling for avian influenza virus surveillance in Great Britain. Res Vet Sci 2024; 173:105279. [PMID: 38704977 DOI: 10.1016/j.rvsc.2024.105279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/20/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
Emerging pathogens can threaten human and animal health, necessitating reliable surveillance schemes to enable preparedness. We evaluated the repeatability and reproducibility of a method developed previously during a single year at one study site. Hunter-harvested ducks and geese were sampled for avian influenza virus at three discrete locations in the UK. H5N1 highly pathogenic avian influenza (HPAIV) was detected in four species (mallard [Anas platyrhynchos], Eurasian teal [Anas crecca], Eurasian wigeon [Mareca penelope] and pink-footed goose [Anser brachyrhynchus]) across all three locations and two non-HPAIV H5N1, influenza A positive detections were made from a mallard and Eurasian wigeon at two locations. Virus was detected within 1-to-4 days of sampling at every location. Application of rapid diagnostic methods to samples collected from hunter-harvested waterfowl offers potential as an early warning system for the surveillance and monitoring of emerging and existing strains of avian influenza A viruses in key avian species.
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Affiliation(s)
| | - Dilhani De Silva
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK
| | - Caroline J Warren
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK
| | - Saumya Thomas
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK
| | - Marek J Slomka
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK
| | - Scott M Reid
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK
| | - Joe James
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK; WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone KT15 3NB, UK
| | - Ashley C Banyard
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK; WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone KT15 3NB, UK
| | - Ian H Brown
- Animal and Plant Health Agency, Weybridge, New Haw, Surrey KT15 3NB, UK; WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone KT15 3NB, UK
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22
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Giacinti JA, Robinson SJ, Sharp CM, Provencher JF, Pearl DL, Stevens B, Nituch L, Brook RW, Jardine CM. Assessing avian influenza surveillance intensity in wild birds using a One Health lens. One Health 2024; 18:100760. [PMID: 38832079 PMCID: PMC11145394 DOI: 10.1016/j.onehlt.2024.100760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/14/2024] [Indexed: 06/05/2024] Open
Abstract
Wildlife disease surveillance, particularly for pathogens with zoonotic potential such as Highly Pathogenic Avian Influenza Virus (HPAIV), is critical to facilitate situational awareness, inform risk, and guide communication and response efforts within a One Health framework. This study evaluates the intensity of avian influenza virus (AIV) surveillance in Ontario's wild bird population following the 2021 H5N1 incursion into Canada. Analyzing 2562 samples collected between November 1, 2021, and October 31, 2022, in Ontario, Canada, we identify spatial variations in surveillance intensity relative to human population density, poultry facility density, and wild mallard abundance. Using the spatial scan statistic, we pinpoint areas where public engagement, collaborations with Indigenous and non-Indigenous hunter/harvesters, and working with poultry producers, could augment Ontario's AIV wild bird surveillance program. Enhanced surveillance at these human-domestic animal-wildlife interfaces is a crucial element of a One Health approach to AIV surveillance. Ongoing assessment of our wild bird surveillance programs is essential for strategic planning and will allow us to refine approaches and generate results that continue to support the program's overarching objective of safeguarding the health of people, animals, and ecosystems.
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Affiliation(s)
- Jolene A. Giacinti
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Sarah J. Robinson
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
- Canadian Wildlife Health Cooperative, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Christopher M. Sharp
- Ontario Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - Jennifer F. Provencher
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada
| | - David L. Pearl
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Brian Stevens
- Canadian Wildlife Health Cooperative, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Larissa Nituch
- Wildlife Research and Monitoring Section, Ontario Ministry of Natural Resources and Forestry, Trent University, Peterborough, Ontario, Canada
| | - Rodney W. Brook
- Wildlife Research and Monitoring Section, Ontario Ministry of Natural Resources and Forestry, Trent University, Peterborough, Ontario, Canada
| | - Claire M. Jardine
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
- Canadian Wildlife Health Cooperative, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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23
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Warren CJ, Brookes SM, Arnold ME, Irvine RM, Hansen RDE, Brown IH, Banyard AC, Slomka MJ. Assessment of Survival Kinetics for Emergent Highly Pathogenic Clade 2.3.4.4 H5Nx Avian Influenza Viruses. Viruses 2024; 16:889. [PMID: 38932181 PMCID: PMC11209063 DOI: 10.3390/v16060889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
High pathogenicity avian influenza viruses (HPAIVs) cause high morbidity and mortality in poultry species. HPAIV prevalence means high numbers of infected wild birds could lead to spill over events for farmed poultry. How these pathogens survive in the environment is important for disease maintenance and potential dissemination. We evaluated the temperature-associated survival kinetics for five clade 2.3.4.4 H5Nx HPAIVs (UK field strains between 2014 and 2021) incubated at up to three temperatures for up to ten weeks. The selected temperatures represented northern European winter (4 °C) and summer (20 °C); and a southern European summer temperature (30 °C). For each clade 2.3.4.4 HPAIV, the time in days to reduce the viral infectivity by 90% at temperature T was established (DT), showing that a lower incubation temperature prolonged virus survival (stability), where DT ranged from days to weeks. The fastest loss of viral infectivity was observed at 30 °C. Extrapolation of the graphical DT plots to the x-axis intercept provided the corresponding time to extinction for viral decay. Statistical tests of the difference between the DT values and extinction times of each clade 2.3.4.4 strain at each temperature indicated that the majority displayed different survival kinetics from the other strains at 4 °C and 20 °C.
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Affiliation(s)
- Caroline J. Warren
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
| | - Sharon M. Brookes
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
| | - Mark E. Arnold
- Department of Epidemiological Sciences, Animal and Plant Health Agency, Sutton Bonington, Loughborough LE12 5RB, UK;
| | - Richard M. Irvine
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
- Office of the Chief Veterinary Officer (OCVO), Welsh Government, Cathays Park, Cardiff CF10 3NQ, UK
| | - Rowena D. E. Hansen
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
- Veterinary Advice Services, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK
| | - Ian H. Brown
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
- WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency, (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK
| | - Ashley C. Banyard
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
- WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency, (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK
| | - Marek J. Slomka
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Woodham Lane, Addlestone, Surrey KT15 3NB, UK; (S.M.B.); (R.M.I.); (R.D.E.H.); (I.H.B.); (A.C.B.)
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24
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Furey C, Scher G, Ye N, Kercher L, DeBeauchamp J, Crumpton JC, Jeevan T, Patton C, Franks J, Rubrum A, Alameh MG, Fan SHY, Phan AT, Hunter CA, Webby RJ, Weissman D, Hensley SE. Development of a nucleoside-modified mRNA vaccine against clade 2.3.4.4b H5 highly pathogenic avian influenza virus. Nat Commun 2024; 15:4350. [PMID: 38782954 PMCID: PMC11116520 DOI: 10.1038/s41467-024-48555-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
mRNA lipid nanoparticle (LNP) vaccines would be useful during an influenza virus pandemic since they can be produced rapidly and do not require the generation of egg-adapted vaccine seed stocks. Highly pathogenic avian influenza viruses from H5 clade 2.3.4.4b are circulating at unprecedently high levels in wild and domestic birds and have the potential to adapt to humans. Here, we generate an mRNA lipid nanoparticle (LNP) vaccine encoding the hemagglutinin (HA) glycoprotein from a clade 2.3.4.4b H5 isolate. The H5 mRNA-LNP vaccine elicits strong T cell and antibody responses in female mice, including neutralizing antibodies and broadly-reactive anti-HA stalk antibodies. The H5 mRNA-LNP vaccine elicits antibodies at similar levels compared to whole inactivated vaccines in female mice with and without prior H1N1 exposures. Finally, we find that the H5 mRNA-LNP vaccine is immunogenic in male ferrets and prevents morbidity and mortality of animals following 2.3.4.4b H5N1 challenge. Together, our data demonstrate that a monovalent mRNA-LNP vaccine expressing 2.3.4.4b H5 is immunogenic and protective in pre-clinical animal models.
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MESH Headings
- Animals
- Influenza Vaccines/immunology
- Influenza Vaccines/administration & dosage
- Female
- Mice
- Ferrets
- Nanoparticles/chemistry
- Male
- Influenza A Virus, H5N1 Subtype/immunology
- Influenza A Virus, H5N1 Subtype/genetics
- Antibodies, Viral/immunology
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Hemagglutinin Glycoproteins, Influenza Virus/genetics
- Orthomyxoviridae Infections/prevention & control
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/virology
- mRNA Vaccines/immunology
- Antibodies, Neutralizing/immunology
- Mice, Inbred BALB C
- Influenza in Birds/prevention & control
- Influenza in Birds/immunology
- Influenza in Birds/virology
- Humans
- RNA, Messenger/genetics
- RNA, Messenger/immunology
- RNA, Messenger/metabolism
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H1N1 Subtype/genetics
- Birds/virology
- Lipids/chemistry
- Liposomes
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Affiliation(s)
- Colleen Furey
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Gabrielle Scher
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Naiqing Ye
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lisa Kercher
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jennifer DeBeauchamp
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jeri Carol Crumpton
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Trushar Jeevan
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Christopher Patton
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | - John Franks
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Adam Rubrum
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Mohamad-Gabriel Alameh
- Infectious Disease Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Anthony T Phan
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Christopher A Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Richard J Webby
- Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Drew Weissman
- Infectious Disease Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Scott E Hensley
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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25
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Poulson RL, Reeves AB, Ahlstrom CA, Scott LC, Hubbard LE, Fojtik A, Carter DL, Stallknecht DE, Ramey AM. Infectivity of Wild-Bird Origin Influenza A Viruses in Minnesota Wetlands across Seasons. Pathogens 2024; 13:406. [PMID: 38787257 PMCID: PMC11124429 DOI: 10.3390/pathogens13050406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
The environmental tenacity of influenza A viruses (IAVs) in the environment likely plays a role in their transmission; IAVs are able to remain infectious in aquatic habitats and may have the capacity to seed outbreaks when susceptible wild bird hosts utilize these same environments months or even seasons later. Here, we aimed to assess the persistence of low-pathogenicity IAVs from naturally infected ducks in Northwestern Minnesota through a field experiment. Viral infectivity was measured using replicate samples maintained in distilled water in a laboratory setting as well as in filtered water from four natural water bodies maintained in steel perforated drums (hereafter, mesocosms) within the field from autumn 2020 to spring 2021. There was limited evidence for the extended persistence of IAVs held in mesocosms; from 65 initial IAV-positive samples, only six IAVs persisted to at least 202 days in the mesocosms compared to 17 viruses persisting at least this long when held under temperature-controlled laboratory settings in distilled water. When accounting for the initial titer of samples, viruses detected at a higher concentration at the initiation of the experiment persisted longer than those with a lower starting titer. A parallel experimental laboratory model was used to further explore the effects of water type on viral persistence, and the results supported the finding of reduced tenacity of IAVs held in mesocosms compared to distilled water. The results of this investigation provide evidence that many factors, including temperature and physicochemical properties, impact the duration of viral infectivity in natural settings, further extending our understanding of the potential and limitations of environmental-based methodologies to recover infectious IAVs.
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Affiliation(s)
- Rebecca L. Poulson
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Andrew B. Reeves
- U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA
- U.S. Geological Survey, National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA
| | - Christina A. Ahlstrom
- U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA
| | - Laura C. Scott
- U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA
| | - Laura E. Hubbard
- U.S. Geological Survey, Upper Midwest Water Science Center, 1 Gifford Pinchot Drive, Madison, WI 53726, USA
| | - Alinde Fojtik
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Deborah L. Carter
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - David E. Stallknecht
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Andrew M. Ramey
- U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA
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26
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Graziosi G, Lupini C, Catelli E, Carnaccini S. Highly Pathogenic Avian Influenza (HPAI) H5 Clade 2.3.4.4b Virus Infection in Birds and Mammals. Animals (Basel) 2024; 14:1372. [PMID: 38731377 PMCID: PMC11083745 DOI: 10.3390/ani14091372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
Avian influenza viruses (AIVs) are highly contagious respiratory viruses of birds, leading to significant morbidity and mortality globally and causing substantial economic losses to the poultry industry and agriculture. Since their first isolation in 2013-2014, the Asian-origin H5 highly pathogenic avian influenza viruses (HPAI) of clade 2.3.4.4b have undergone unprecedented evolution and reassortment of internal gene segments. In just a few years, it supplanted other AIV clades, and now it is widespread in the wild migratory waterfowl, spreading to Asia, Europe, Africa, and the Americas. Wild waterfowl, the natural reservoir of LPAIVs and generally more resistant to the disease, also manifested high morbidity and mortality with HPAIV clade 2.3.4.4b. This clade also caused overt clinical signs and mass mortality in a variety of avian and mammalian species never reported before, such as raptors, seabirds, sealions, foxes, and others. Most notably, the recent outbreaks in dairy cattle were associated with the emergence of a few critical mutations related to mammalian adaptation, raising concerns about the possibility of jumping species and acquisition of sustained human-to-human transmission. The main clinical signs and anatomopathological findings associated with clade 2.3.4.4b virus infection in birds and non-human mammals are hereby summarized.
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Affiliation(s)
- Giulia Graziosi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (G.G.); (C.L.); (E.C.)
| | - Caterina Lupini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (G.G.); (C.L.); (E.C.)
| | - Elena Catelli
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (G.G.); (C.L.); (E.C.)
| | - Silvia Carnaccini
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
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27
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Azat C, Alvarado-Rybak M, Aguilera JF, Benavides JA. Spatio-temporal dynamics and drivers of highly pathogenic avian influenza H5N1 in Chile. Front Vet Sci 2024; 11:1387040. [PMID: 38756514 PMCID: PMC11096463 DOI: 10.3389/fvets.2024.1387040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 03/28/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction Highly pathogenic avian influenza A H5N1 clade 2.3.4.4b (hereafter H5N1) is causing vast impacts on biodiversity and poultry around the globe. In Chile, lethal H5N1 cases have been reported in a wide range of wild bird species, marine mammals, backyard and industrial poultry, and humans. This study describes the spatio-temporal patterns of the current epizootic of H5N1 in Chile and test drivers that could be associated with outbreak occurrence. Methods We used H5N1 cases reported by the Chilean National Animal Health Authority from 5 December 2022 to 5 April 2023. These included wild bird cases confirmed through an avian influenza-specific real-time reverse transcription PCR assay (RT-qPCR), obtained from passive and active surveillance. Data were analyzed to detect the presence of H5N1 clusters under space-time permutation probability modeling, the association of H5N1 with distance and days since the first outbreak through linear regression, and the correlation of H5N1 presence with a number of ecological and anthropogenic variables using general linear modeling. Results From 445 H5N1 identified outbreaks involving 613 individual cases in wild birds, a consistent wave-like spread of H5N1 from north to south was identified, which may help predict hotspots of outbreak risk. For instance, seven statistically significant clusters were identified in central and northern Chile, where poultry production and wildlife mortality are concentrated. The presence of outbreaks was correlated with landscape-scale variables, notably temperature range, bird richness, and human footprint. Discussion In less than a year, H5N1 has been associated with the unusual mortality of >100,000 individuals of wild animals in Chile, mainly coastal birds and marine mammals. It is urgent that scientists, the poultry sector, local communities, and national health authorities co-design and implement science-based measures from a One Health perspective to avoid further H5N1 spillover from wildlife to domestic animals and humans, including rapid removal and proper disposal of wild dead animals and the closure of public areas (e.g., beaches) reporting high wildlife mortalities.
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Affiliation(s)
- Claudio Azat
- Sustainability Research Center & PhD in Conservation Medicine, Life Science Faculty, Universidad Andrés Bello, Santiago, Chile
| | - Mario Alvarado-Rybak
- Núcleo de Investigaciones Aplicadas en Ciencias Veterinarias y Agronómicas, Facultad de Medicina Veterinaria y Agronomía, Universidad de las Américas, Santiago, Chile
| | - José F. Aguilera
- Sustainability Research Center & PhD in Conservation Medicine, Life Science Faculty, Universidad Andrés Bello, Santiago, Chile
| | - Julio A. Benavides
- Sustainability Research Center & PhD in Conservation Medicine, Life Science Faculty, Universidad Andrés Bello, Santiago, Chile
- MIVEGEC, Institut de Recherche pour le Développement, CNRS, Université de Montpellier, Montpellier, France
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28
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Ahrens AK, Jónsson SR, Svansson V, Brugger B, Beer M, Harder TC, Pohlmann A. Iceland: an underestimated hub for the spread of high-pathogenicity avian influenza viruses in the North Atlantic. J Gen Virol 2024; 105:001985. [PMID: 38695722 PMCID: PMC11170123 DOI: 10.1099/jgv.0.001985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/22/2024] [Indexed: 06/15/2024] Open
Abstract
High-pathogenicity avian influenza viruses (HPAIVs) of the goose/Guangdong lineage are enzootically circulating in wild bird populations worldwide. This increases the risk of entry into poultry production and spill-over to mammalian species, including humans. Better understanding of the ecological and epizootiological networks of these viruses is essential to optimize mitigation measures. Based on full genome sequences of 26 HPAIV samples from Iceland, which were collected between spring and autumn 2022, as well as 1 sample from the 2023 summer period, we show that 3 different genotypes of HPAIV H5N1 clade 2.3.4.4b were circulating within the wild bird population in Iceland in 2022. Furthermore, in 2023 we observed a novel introduction of HPAIV H5N5 of the same clade to Iceland. The data support the role of Iceland as an utmost northwestern distribution area in Europe that might act also as a potential bridging point for intercontinental spread of HPAIV across the North Atlantic.
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Affiliation(s)
- Ann Kathrin Ahrens
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Suedufer 10, 17493 Greifswald –Isle of Riems, Germany
| | - Stefán Ragnar Jónsson
- The Institute for Experimental Pathology at Keldur, University of Iceland, Reykjavík, Iceland
| | - Vilhjálmur Svansson
- The Institute for Experimental Pathology at Keldur, University of Iceland, Reykjavík, Iceland
| | - Brigitte Brugger
- The Icelandic Food and Veterinary Authority (MAST), Austurvegi 64, Selfossi, Iceland
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Suedufer 10, 17493 Greifswald –Isle of Riems, Germany
| | - Timm C. Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Suedufer 10, 17493 Greifswald –Isle of Riems, Germany
| | - Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Suedufer 10, 17493 Greifswald –Isle of Riems, Germany
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29
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Lean FZX, Falchieri M, Furman N, Tyler G, Robinson C, Holmes P, Reid SM, Banyard AC, Brown IH, Man C, Núñez A. Highly pathogenic avian influenza virus H5N1 infection in skua and gulls in the United Kingdom, 2022. Vet Pathol 2024; 61:421-431. [PMID: 38140946 DOI: 10.1177/03009858231217224] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
The reemergence of the highly pathogenic avian influenza virus (HPAIV) subtype H5N1 in the United Kingdom in 2021-2022 has caused unprecedented epizootic events in wild birds and poultry. During the summer of 2022, there was a shift in virus transmission dynamics resulting in increased HPAIV infection in seabirds, and consequently, a profound impact on seabird populations. To understand the pathological impact of HPAIV in seabirds, we evaluated the virus antigen distribution and associated pathological changes in the tissues of great skua (Stercorarius skua, n = 8), long-tailed skua (Stercorarius longicaudus, n = 1), European herring gull (Larus argentatus, n = 5), and black-headed gull (Chroicocephalus ridibundus, n = 4), which succumbed to natural infection of HPAIV during the summer of 2022. Cases were collected from Shetland, including Scatness (mainland), No Ness (mainland), Clumlie (mainland), Hermaness (island), Fair Isle (island), Noss (island), and the West Midlands, South East, and South West of England. Grossly, gizzard ulceration was observed in one great skua and pancreatic necrosis was observed in 4 herring gulls, with intralesional viral antigen detected subsequently. Microscopical analysis revealed neuro-, pneumo-, lymphoid-, and cardiomyotropism of HPAIV H5N1, with the most common virus-associated pathological changes being pancreatic and splenic necrosis. Examination of the reproductive tract of the great skua revealed HPAIV-associated oophoritis and salpingitis, and virus replication within the oviductal epithelium. The emergence of HPAIV in seabirds Stercorariidae and Laridae, particularly during summer 2022, has challenged the dogma of HPAIV dynamics, posing a significant threat to wild bird life with potential implications for the reproductive performance of seabirds of conservation importance.
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Affiliation(s)
- Fabian Z X Lean
- Animal and Plant Health Agency, Weybridge, UK
- Royal Veterinary College, Hertfordshire, UK
| | | | | | | | | | - Paul Holmes
- APHA Shrewsbury Veterinary Investigation Centre, UK
| | | | | | - Ian H Brown
- Animal and Plant Health Agency, Weybridge, UK
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30
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Hall V, Cardona C, Mendoza K, Torchetti M, Lantz K, Bueno I, Franzen-Klein D. Surveillance for highly pathogenic avian influenza A (H5N1) in a raptor rehabilitation center-2022. PLoS One 2024; 19:e0299330. [PMID: 38683799 PMCID: PMC11057742 DOI: 10.1371/journal.pone.0299330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/07/2024] [Indexed: 05/02/2024] Open
Abstract
An ongoing, severe outbreak of highly pathogenic avian influenza virus (HPAI) A H5N1 clade 2.3.4.4b has been circulating in wild and domestic bird populations throughout the world, reaching North America in 2021. This HPAI outbreak has exhibited unique characteristics when compared to previous outbreaks. The global distribution of disease, prolonged duration, extensive number of species and individual wild birds affected, and the large impact on the global poultry industry have all exceeded historical impacts of previous outbreaks in North America. In this study, we describe the results of HPAI surveillance conducted at The Raptor Center, a wildlife rehabilitation hospital at University of Minnesota (Saint Paul, MN, U.S.A.), from March 28th-December 31, 2022. All wild raptors admitted to the facility were tested for avian influenza viruses using polymerase chain reaction (PCR) testing. All non-negative samples were submitted to the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories for confirmatory HPAI testing and genetic sequencing. During the study period, 996 individual birds representing 20 different species were tested for avian influenza, and 213 birds were confirmed HPAI positive. Highly pathogenic avian influenza surveillance conducted at The Raptor Center contributed 75% of the HPAI positive raptor detections within the state of Minnesota, located within the Mississippi flyway, significantly augmenting state wildlife surveillance efforts. The viral genotypes observed in birds sampled at The Raptor Center were representative of what was seen in wild bird surveillance within the Mississippi flyway during the same time frame. Wildlife rehabilitation centers provide an opportune situation to augment disease surveillance at the human, wildlife and domestic animal interface during ongoing infectious disease outbreaks.
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Affiliation(s)
- Victoria Hall
- The Raptor Center, College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota, United States of America
| | - Carol Cardona
- College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota, United States of America
| | - Kristelle Mendoza
- College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota, United States of America
| | - Mia Torchetti
- United States Department of Agriculture Animal and Plant Health Inspection Services, National Veterinary Services Laboratories, Veterinary Services, Ames, Iowa, United States of America
| | - Kristina Lantz
- United States Department of Agriculture Animal and Plant Health Inspection Services, National Veterinary Services Laboratories, Veterinary Services, Ames, Iowa, United States of America
| | - Irene Bueno
- Bristol Veterinary School, University of Bristol, Langford, Bristol, England
| | - Dana Franzen-Klein
- The Raptor Center, College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota, United States of America
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31
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Murawski A, Fabrizio T, Ossiboff R, Kackos C, Jeevan T, Jones JC, Kandeil A, Walker D, Turner JCM, Patton C, Govorkova EA, Hauck H, Mickey S, Barbeau B, Bommineni YR, Torchetti M, Lantz K, Kercher L, Allison AB, Vogel P, Walsh M, Webby RJ. Highly pathogenic avian influenza A(H5N1) virus in a common bottlenose dolphin (Tursiops truncatus) in Florida. Commun Biol 2024; 7:476. [PMID: 38637646 PMCID: PMC11026403 DOI: 10.1038/s42003-024-06173-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 04/10/2024] [Indexed: 04/20/2024] Open
Abstract
Since late 2021, highly pathogenic avian influenza (HPAI) viruses of A/goose/Guangdong/1/1996 (H5N1) lineage have caused widespread mortality in wild birds and poultry in the United States. Concomitant with the spread of HPAI viruses in birds are increasing numbers of mammalian infections, including wild and captive mesocarnivores and carnivores with central nervous system involvement. Here we report HPAI, A(H5N1) of clade 2.3.4.4b, in a common bottlenose dolphin (Tursiops truncatus) from Florida, United States. Pathological findings include neuronal necrosis and inflammation of the brain and meninges, and quantitative real time RT-PCR reveal the brain carried the highest viral load. Virus isolated from the brain contains a S246N neuraminidase substitution which leads to reduced inhibition by neuraminidase inhibitor oseltamivir. The increased prevalence of A(H5N1) viruses in atypical avian hosts and its cross-species transmission into mammalian species highlights the public health importance of continued disease surveillance and biosecurity protocols.
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Affiliation(s)
- Allison Murawski
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Thomas Fabrizio
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Robert Ossiboff
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Christina Kackos
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Trushar Jeevan
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jeremy C Jones
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Ahmed Kandeil
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - David Walker
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jasmine C M Turner
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Christopher Patton
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, 38105, USA
| | - Elena A Govorkova
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Helena Hauck
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Suzanna Mickey
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Brittany Barbeau
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Y Reddy Bommineni
- Bronson Animal Disease Diagnostic Laboratory, 2700 N John Young Parkway, Kissimmee, FL, 34745-8006, USA
| | - Mia Torchetti
- National Veterinary Services Laboratories, Animal and Plant Health Inspection Service (APHIS), U.S. Department of Agriculture (USDA), Ames, IA, 50011, USA
| | - Kristina Lantz
- National Veterinary Services Laboratories, Animal and Plant Health Inspection Service (APHIS), U.S. Department of Agriculture (USDA), Ames, IA, 50011, USA
| | - Lisa Kercher
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Andrew B Allison
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Peter Vogel
- Comparative Pathology Core, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Michael Walsh
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Richard J Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
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Tomás G, Marandino A, Panzera Y, Rodríguez S, Wallau GL, Dezordi FZ, Pérez R, Bassetti L, Negro R, Williman J, Uriarte V, Grazioli F, Leizagoyen C, Riverón S, Coronel J, Bello S, Páez E, Lima M, Méndez V, Pérez R. Highly pathogenic avian influenza H5N1 virus infections in pinnipeds and seabirds in Uruguay: Implications for bird-mammal transmission in South America. Virus Evol 2024; 10:veae031. [PMID: 38756986 PMCID: PMC11096771 DOI: 10.1093/ve/veae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/01/2024] [Accepted: 04/12/2024] [Indexed: 05/18/2024] Open
Abstract
The highly pathogenic avian influenza viruses of clade 2.3.4.4b have caused unprecedented deaths in South American wild birds, poultry, and marine mammals. In September 2023, pinnipeds and seabirds appeared dead on the Uruguayan Atlantic coast. Sixteen influenza virus strains were characterized by real-time reverse transcription PCR and genome sequencing in samples from sea lions (Otaria flavescens), fur seals (Arctocephalus australis), and terns (Sterna hirundinacea). Phylogenetic and ancestral reconstruction analysis showed that these strains have pinnipeds most likely as the ancestral host, representing a recent introduction of clade 2.3.4.4b in Uruguay. The Uruguayan and closely related strains from Peru (sea lions) and Chile (sea lions and a human case) carry mammalian adaptative residues 591K and 701N in the viral polymerase basic protein 2 (PB2). Our findings suggest that clade 2.3.4.4b strains in South America may have spread from mammals to mammals and seabirds, revealing a new transmission route.
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Affiliation(s)
- Gonzalo Tomás
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Ana Marandino
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Yanina Panzera
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Sirley Rodríguez
- Departamento de Virología, División de Laboratorios Veterinarios ‘Miguel C. Rubino’, Dirección’General de Servicios Ganaderos, Ministerio de Ganadería, Agricultura y Pesca, Ruta 8 km 17,000, Montevideo 12100, Uruguay
| | - Gabriel Luz Wallau
- Departamento de Entomología, Núcleo de Bioinformática, Instituto Aggeu Magalhães (IAM)-Fundação Oswaldo Cruz (FIOCRUZ), Av. Moraes Rego, s/n, Campus da UFPE- Cidade Universitária, Recife, Pernambuco 50740-465, Brazil
- Department of Arbovirology and Entomology, Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Center for Arbovirus and Hemorrhagic Fever Reference and Research, National Reference Center for Tropical Infectious Diseases, Hamburg 20359, Germany
| | - Filipe Zimmer Dezordi
- Departamento de Entomología, Núcleo de Bioinformática, Instituto Aggeu Magalhães (IAM)-Fundação Oswaldo Cruz (FIOCRUZ), Av. Moraes Rego, s/n, Campus da UFPE- Cidade Universitária, Recife, Pernambuco 50740-465, Brazil
| | - Ramiro Pérez
- Departamento de Virología, División de Laboratorios Veterinarios ‘Miguel C. Rubino’, Dirección’General de Servicios Ganaderos, Ministerio de Ganadería, Agricultura y Pesca, Ruta 8 km 17,000, Montevideo 12100, Uruguay
| | - Lucía Bassetti
- Departamento de Virología, División de Laboratorios Veterinarios ‘Miguel C. Rubino’, Dirección’General de Servicios Ganaderos, Ministerio de Ganadería, Agricultura y Pesca, Ruta 8 km 17,000, Montevideo 12100, Uruguay
| | - Raúl Negro
- Departamento de Virología, División de Laboratorios Veterinarios ‘Miguel C. Rubino’, Dirección’General de Servicios Ganaderos, Ministerio de Ganadería, Agricultura y Pesca, Ruta 8 km 17,000, Montevideo 12100, Uruguay
| | - Joaquín Williman
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Valeria Uriarte
- Dirección Nacional de Biodiversidad y Servicios Ecosistémicos (DINABISE), Ministerio de Ambiente, Juncal 1385, Montevideo 11000, Uruguay
| | - Fabiana Grazioli
- Dirección Nacional de Biodiversidad y Servicios Ecosistémicos (DINABISE), Ministerio de Ambiente, Juncal 1385, Montevideo 11000, Uruguay
| | - Carmen Leizagoyen
- Dirección Nacional de Biodiversidad y Servicios Ecosistémicos (DINABISE), Ministerio de Ambiente, Juncal 1385, Montevideo 11000, Uruguay
| | - Sabrina Riverón
- Dirección Nacional de Recursos Acuáticos (DINARA), Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1497, Montevideo 11200, Uruguay
| | - Jaime Coronel
- Dirección Nacional de Recursos Acuáticos (DINARA), Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1497, Montevideo 11200, Uruguay
| | - Soledad Bello
- Dirección Nacional de Recursos Acuáticos (DINARA), Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1497, Montevideo 11200, Uruguay
| | - Enrique Páez
- Dirección Nacional de Recursos Acuáticos (DINARA), Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1497, Montevideo 11200, Uruguay
| | - Martín Lima
- Dirección Nacional de Recursos Acuáticos (DINARA), Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1497, Montevideo 11200, Uruguay
| | - Virginia Méndez
- Dirección Nacional de Recursos Acuáticos (DINARA), Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1497, Montevideo 11200, Uruguay
| | - Ruben Pérez
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
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Fusaro A, Zecchin B, Giussani E, Palumbo E, Agüero-García M, Bachofen C, Bálint Á, Banihashem F, Banyard AC, Beerens N, Bourg M, Briand FX, Bröjer C, Brown IH, Brugger B, Byrne AMP, Cana A, Christodoulou V, Dirbakova Z, Fagulha T, Fouchier RAM, Garza-Cuartero L, Georgiades G, Gjerset B, Grasland B, Groza O, Harder T, Henriques AM, Hjulsager CK, Ivanova E, Janeliunas Z, Krivko L, Lemon K, Liang Y, Lika A, Malik P, McMenamy MJ, Nagy A, Nurmoja I, Onita I, Pohlmann A, Revilla-Fernández S, Sánchez-Sánchez A, Savic V, Slavec B, Smietanka K, Snoeck CJ, Steensels M, Svansson V, Swieton E, Tammiranta N, Tinak M, Van Borm S, Zohari S, Adlhoch C, Baldinelli F, Terregino C, Monne I. High pathogenic avian influenza A(H5) viruses of clade 2.3.4.4b in Europe-Why trends of virus evolution are more difficult to predict. Virus Evol 2024; 10:veae027. [PMID: 38699215 PMCID: PMC11065109 DOI: 10.1093/ve/veae027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/01/2024] [Accepted: 03/26/2024] [Indexed: 05/05/2024] Open
Abstract
Since 2016, A(H5Nx) high pathogenic avian influenza (HPAI) virus of clade 2.3.4.4b has become one of the most serious global threats not only to wild and domestic birds, but also to public health. In recent years, important changes in the ecology, epidemiology, and evolution of this virus have been reported, with an unprecedented global diffusion and variety of affected birds and mammalian species. After the two consecutive and devastating epidemic waves in Europe in 2020-2021 and 2021-2022, with the second one recognized as one of the largest epidemics recorded so far, this clade has begun to circulate endemically in European wild bird populations. This study used the complete genomes of 1,956 European HPAI A(H5Nx) viruses to investigate the virus evolution during this varying epidemiological outline. We investigated the spatiotemporal patterns of A(H5Nx) virus diffusion to/from and within Europe during the 2020-2021 and 2021-2022 epidemic waves, providing evidence of ongoing changes in transmission dynamics and disease epidemiology. We demonstrated the high genetic diversity of the circulating viruses, which have undergone frequent reassortment events, providing for the first time a complete overview and a proposed nomenclature of the multiple genotypes circulating in Europe in 2020-2022. We described the emergence of a new genotype with gull adapted genes, which offered the virus the opportunity to occupy new ecological niches, driving the disease endemicity in the European wild bird population. The high propensity of the virus for reassortment, its jumps to a progressively wider number of host species, including mammals, and the rapid acquisition of adaptive mutations make the trend of virus evolution and spread difficult to predict in this unfailing evolving scenario.
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Affiliation(s)
- Alice Fusaro
- European Reference Laboratory (EURL) for Avian Influenza and Newcastle Disease, Istituto Zooprofilattico Sperimentale delle Venezie, viale dell'universita 10, Legnaro, Padua 35020, Italy
| | - Bianca Zecchin
- European Reference Laboratory (EURL) for Avian Influenza and Newcastle Disease, Istituto Zooprofilattico Sperimentale delle Venezie, viale dell'universita 10, Legnaro, Padua 35020, Italy
| | - Edoardo Giussani
- European Reference Laboratory (EURL) for Avian Influenza and Newcastle Disease, Istituto Zooprofilattico Sperimentale delle Venezie, viale dell'universita 10, Legnaro, Padua 35020, Italy
| | - Elisa Palumbo
- European Reference Laboratory (EURL) for Avian Influenza and Newcastle Disease, Istituto Zooprofilattico Sperimentale delle Venezie, viale dell'universita 10, Legnaro, Padua 35020, Italy
| | - Montserrat Agüero-García
- Ministry of Agriculture, Fisheries and Food, Laboratorio Central de Veterinaria (LCV), Ctra. M-106, Km 1,4 Algete, Madrid 28110, Spain
| | - Claudia Bachofen
- Federal Department of Home Affairs FDHA Institute of Virology and Immunology IVI, Sensemattstrasse 293, Mittelhäusern 3147, Switzerland
| | - Ádám Bálint
- Veterinary Diagnostic Directorate (NEBIH), Laboratory of Virology, National Food Chain Safety Office, Tábornok utca 2, Budapest 1143, Hungary
| | - Fereshteh Banihashem
- Department of Microbiology, National Veterinary Institute (SVA), Travvägen 20, Uppsala 75189, Sweden
| | - Ashley C Banyard
- WOAH/FAO international reference laboratory for Avian Influenza and Newcastle Disease, Virology Department, Animal and Plant Health Agency-Weybridge, Woodham Lane, New Haw, Addlestone KT15 3NB, United Kingdom
| | - Nancy Beerens
- Department of Virology Wageningen Bioveterinary Research, Houtribweg 39, Lelystad 8221 RA, The Netherlands
| | - Manon Bourg
- Luxembourgish Veterinary and Food Administration (ALVA), State Veterinary Laboratory, 1 Rue Louis Rech, Dudelange 3555, Luxembourg
| | - Francois-Xavier Briand
- Agence Nationale de Sécurité Sanitaire, de l’Alimentation, de l’Environnement et du Travail, Laboratoire de Ploufragan-Plouzané-Niort, Unité de Virologie, Immunologie, Parasitologie Avaires et Cunicoles, 41 Rue de Beaucemaine – BP 53, Ploufragan 22440, France
| | - Caroline Bröjer
- Department of Pathology and Wildlife Disease, National Veterinary Institute (SVA), Travvägen 20, Uppsala 75189, Sweden
| | - Ian H Brown
- WOAH/FAO international reference laboratory for Avian Influenza and Newcastle Disease, Virology Department, Animal and Plant Health Agency-Weybridge, Woodham Lane, New Haw, Addlestone KT15 3NB, United Kingdom
| | - Brigitte Brugger
- Icelandic Food and Veterinary Authority, Austurvegur 64, Selfoss 800, Iceland
| | - Alexander M P Byrne
- WOAH/FAO international reference laboratory for Avian Influenza and Newcastle Disease, Virology Department, Animal and Plant Health Agency-Weybridge, Woodham Lane, New Haw, Addlestone KT15 3NB, United Kingdom
| | - Armend Cana
- Kosovo Food and Veterinary Agency, Sector of Serology and Molecular Diagnostics, Kosovo Food and Veterinary Laboratory, Str Lidhja e Pejes, Prishtina 10000, Kosovo
| | - Vasiliki Christodoulou
- Laboratory for Animal Health Virology Section Veterinary Services (1417), 79, Athalassa Avenue Aglantzia, Nicosia 2109, Cyprus
| | - Zuzana Dirbakova
- Department of Animal Health, State Veterinary Institute, Pod Dráhami 918, Zvolen 96086, Slovakia
| | - Teresa Fagulha
- I.P. (INIAV, I.P.), Avenida da República, Instituto Nacional de Investigação Agrária e Veterinária, Quinta do Marquês, Oeiras 2780 – 157, Portugal
| | - Ron A M Fouchier
- Department of Viroscience, Erasmus MC, Dr. Molewaterplein 40, Rotterdam 3015 GD, The Netherlands
| | - Laura Garza-Cuartero
- Department of Agriculture, Food and the Marine, Central Veterinary Research Laboratory (CVRL), Backweston Campus, Stacumny Lane, Celbridge, Co. Kildare W23 X3PH, Ireland
| | - George Georgiades
- Thessaloniki Veterinary Centre (TVC), Department of Avian Diseases, 26th October Street 80, Thessaloniki 54627, Greece
| | - Britt Gjerset
- Immunology & Virology department, Norwegian Veterinary Institute, Arboretveien 57, Oslo Pb 64, N-1431 Ås, Norway
| | - Beatrice Grasland
- Agence Nationale de Sécurité Sanitaire, de l’Alimentation, de l’Environnement et du Travail, Laboratoire de Ploufragan-Plouzané-Niort, Unité de Virologie, Immunologie, Parasitologie Avaires et Cunicoles, 41 Rue de Beaucemaine – BP 53, Ploufragan 22440, France
| | - Oxana Groza
- Republican Center for Veterinary Diagnostics (NRL), 3 street Murelor, Chisinau 2051, Republic of Moldova
| | - Timm Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, Greifswald-Insel Riems 17493, Germany
| | - Ana Margarida Henriques
- I.P. (INIAV, I.P.), Avenida da República, Instituto Nacional de Investigação Agrária e Veterinária, Quinta do Marquês, Oeiras 2780 – 157, Portugal
| | - Charlotte Kristiane Hjulsager
- Department for Virus and Microbiological Special Diagnostics, Statens Serum Institut, 5 Artillerivej, Copenhagen DK-2300, Denmark
| | - Emiliya Ivanova
- National Reference Laboratory for Avian Influenza and Newcastle Disease, National Diagnostic and Research Veterinary Medical Institute (NDRVMI), 190 Lomsko Shose Blvd., Sofia 1231, Bulgaria
| | - Zygimantas Janeliunas
- National Food and Veterinary Risk Assessment Institute (NFVRAI), Kairiukscio str. 10, Vilnius 08409, Lithuania
| | - Laura Krivko
- Institute of Food Safety, Animal Health and Environment (BIOR), Laboratory of Microbilogy and Pathology, 3 Lejupes Street, Riga 1076, Latvia
| | - Ken Lemon
- Virological Molecular Diagnostic Laboratory, Veterinary Sciences Division, Department of Virology, Agri-Food and Bioscience Institute (AFBI), Stoney Road, Belfast BT4 3SD, Northern Ireland
| | - Yuan Liang
- Department of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 15, Frederiksberg 1870, Denmark
| | - Aldin Lika
- Animal Health Department, Food Safety and Veterinary Institute, Rruga Aleksandër Moisiu 10, Tirana 1001, Albania
| | - Péter Malik
- Veterinary Diagnostic Directorate (NEBIH), Laboratory of Virology, National Food Chain Safety Office, Tábornok utca 2, Budapest 1143, Hungary
| | - Michael J McMenamy
- Virological Molecular Diagnostic Laboratory, Veterinary Sciences Division, Department of Virology, Agri-Food and Bioscience Institute (AFBI), Stoney Road, Belfast BT4 3SD, Northern Ireland
| | - Alexander Nagy
- Department of Molecular Biology, State Veterinary Institute Prague, Sídlištní 136/24, Praha 6-Lysolaje 16503, Czech Republic
| | - Imbi Nurmoja
- National Centre for Laboratory Research and Risk Assessment (LABRIS), Kreutzwaldi 30, Tartu 51006, Estonia
| | - Iuliana Onita
- Institute for Diagnosis and Animal Health (IDAH), Str. Dr. Staicovici 63, Bucharest 050557, Romania
| | - Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, Greifswald-Insel Riems 17493, Germany
| | - Sandra Revilla-Fernández
- Austrian Agency for Health and Food Safety (AGES), Institute for Veterinary Disease Control, Robert Koch Gasse 17, Mödling 2340, Austria
| | - Azucena Sánchez-Sánchez
- Ministry of Agriculture, Fisheries and Food, Laboratorio Central de Veterinaria (LCV), Ctra. M-106, Km 1,4 Algete, Madrid 28110, Spain
| | - Vladimir Savic
- Croatian Veterinary Institute, Poultry Centre, Heinzelova 55, Zagreb 10000, Croatia
| | - Brigita Slavec
- University of Ljubljana – Veterinary Faculty/National Veterinary Institute, Gerbičeva 60, Ljubljana 1000, Slovenia
| | - Krzysztof Smietanka
- Department of Poultry Diseases, National Veterinary Research Institute, Al. Partyzantow 57, Puławy 24-100, Poland
| | - Chantal J Snoeck
- Luxembourg Institute of Health (LIH), Department of Infection and Immunity, 29 Rue Henri Koch, Esch-sur-Alzette 4354, Luxembourg
| | - Mieke Steensels
- Avian Virology and Immunology, Sciensano, Rue Groeselenberg 99, Ukkel 1180, Ukkel, Belgium
| | - Vilhjálmur Svansson
- Biomedical Center, Institute for Experimental Pathology, University of Iceland, Keldnavegi 3 112 Reykjavík Ssn. 650269 4549, Keldur 851, Iceland
| | - Edyta Swieton
- Department of Poultry Diseases, National Veterinary Research Institute, Al. Partyzantow 57, Puławy 24-100, Poland
| | - Niina Tammiranta
- Finnish Food Authority, Animal Health Diagnostic Unit, Veterinary Virology, Mustialankatu 3, Helsinki FI-00790, Finland
| | - Martin Tinak
- Department of Animal Health, State Veterinary Institute, Pod Dráhami 918, Zvolen 96086, Slovakia
| | - Steven Van Borm
- Avian Virology and Immunology, Sciensano, Rue Groeselenberg 99, Ukkel 1180, Ukkel, Belgium
| | - Siamak Zohari
- Department of Microbiology, National Veterinary Institute (SVA), Travvägen 20, Uppsala 75189, Sweden
| | - Cornelia Adlhoch
- European Centre for Disease Prevention and Control, Gustav III:s boulevard 40, Solna 169 73, Sweden
| | | | - Calogero Terregino
- European Reference Laboratory (EURL) for Avian Influenza and Newcastle Disease, Istituto Zooprofilattico Sperimentale delle Venezie, viale dell'universita 10, Legnaro, Padua 35020, Italy
| | - Isabella Monne
- European Reference Laboratory (EURL) for Avian Influenza and Newcastle Disease, Istituto Zooprofilattico Sperimentale delle Venezie, viale dell'universita 10, Legnaro, Padua 35020, Italy
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Meade PS, Bandawane P, Bushfield K, Hoxie I, Azcona KR, Burgos D, Choudhury S, Diaby A, Diallo M, Gaynor K, Huang A, Kante K, Khan SN, Kim W, Ajayi PK, Roubidoux E, Nelson S, McMahon R, Albrecht RA, Krammer F, Marizzi C. Detection of clade 2.3.4.4b highly pathogenic H5N1 influenza virus in New York City. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.04.588061. [PMID: 38617218 PMCID: PMC11014507 DOI: 10.1101/2024.04.04.588061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Highly pathogenic avian influenza viruses of the H5N1 clade 2.3.4.4b arrived in North America in the winter of 2021/2022. These viruses have spread across the Americas causing morbidity and mortality in both wild and domestic birds as well as some mammalian species, including cattle. Many surveillance programs in wildlife as well as commercial poultry operations have detected these viruses. Here we conducted surveillance of avian species in the urban environment in New York City. We detected highly pathogenic H5N1 viruses in six samples from four different bird species and performed full genome sequencing. Sequence analysis showed the presence of multiple different genotypes. Our work highlights that the interface between animals and humans that may give rise to zoonotic infections or even pandemics is not limited to rural environments and commercial poultry operations but extends into the heart of our urban centers.
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Affiliation(s)
- Philip S. Meade
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Pooja Bandawane
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kaitlyn Bushfield
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Irene Hoxie
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Karla R. Azcona
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Daneidy Burgos
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Sadia Choudhury
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Adama Diaby
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Mariama Diallo
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Kailani Gaynor
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Aaron Huang
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | - Kadiatou Kante
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | | | - William Kim
- New York City Virus Hunters Program, BioBus, New York, NY, USA
| | | | - Ericka Roubidoux
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Sasha Nelson
- Animal Care Centers of New York, New York, NY, USA
| | | | - Randy A Albrecht
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Ignaz Semmelweis Institute, Interuniversity Institute for Infection Research, Medical University of Vienna, Vienna, Austria
| | - Christine Marizzi
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- New York City Virus Hunters Program, BioBus, New York, NY, USA
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Reperant L, Russell CA, Osterhaus A. Scientific highlights of the 9th ESWI Influenza Conference. ONE HEALTH OUTLOOK 2024; 6:5. [PMID: 38561784 PMCID: PMC10986029 DOI: 10.1186/s42522-024-00099-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The European Scientific Working Group on Influenza (ESWI) held the 9th ESWI Influenza Conference in Valencia from 17-20 September 2023. Here we provide a summary of twelve key presentations, covering major topics on influenza virus, respiratory syncytial virus (RSV) and SARS coronavirus 2 (SARS-CoV-2) including: infection processes beyond acute respiratory disease, long COVID, vaccines against influenza and RSV, the implications of the potential extinction of influenza B virus Yamagata lineage, and the threats posed by zoonotic highly pathogenic avian influenza viruses.
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Affiliation(s)
| | - Colin A Russell
- Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Albert Osterhaus
- Center of Infection Medicine and Zoonosis Research and the University of Veterinary Medicine Hannover, Hannover, Germany.
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Zeng J, Du F, Xiao L, Sun H, Lu L, Lei W, Zheng J, Wang L, Shu S, Li Y, Zhang Q, Tang K, Sun Q, Zhang C, Long H, Qiu Z, Zhai K, Li Z, Zhang G, Sun Y, Wang D, Zhang Z, Lycett SJ, Gao GF, Shu Y, Liu J, Du X, Pu J. Spatiotemporal genotype replacement of H5N8 avian influenza viruses contributed to H5N1 emergence in 2021/2022 panzootic. J Virol 2024; 98:e0140123. [PMID: 38358287 PMCID: PMC10949427 DOI: 10.1128/jvi.01401-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
Since 2020, clade 2.3.4.4b highly pathogenic avian influenza H5N8 and H5N1 viruses have swept through continents, posing serious threats to the world. Through comprehensive analyses of epidemiological, genetic, and bird migration data, we found that the dominant genotype replacement of the H5N8 viruses in 2020 contributed to the H5N1 outbreak in the 2021/2022 wave. The 2020 outbreak of the H5N8 G1 genotype instead of the G0 genotype produced reassortment opportunities and led to the emergence of a new H5N1 virus with G1's HA and MP genes. Despite extensive reassortments in the 2021/2022 wave, the H5N1 virus retained the HA and MP genes, causing a significant outbreak in Europe and North America. Furtherly, through the wild bird migration flyways investigation, we found that the temporal-spatial coincidence between the outbreak of the H5N8 G1 virus and the bird autumn migration may have expanded the H5 viral spread, which may be one of the main drivers of the emergence of the 2020-2022 H5 panzootic.IMPORTANCESince 2020, highly pathogenic avian influenza (HPAI) H5 subtype variants of clade 2.3.4.4b have spread across continents, posing unprecedented threats globally. However, the factors promoting the genesis and spread of H5 HPAI viruses remain unclear. Here, we found that the spatiotemporal genotype replacement of H5N8 HPAI viruses contributed to the emergence of the H5N1 variant that caused the 2021/2022 panzootic, and the viral evolution in poultry of Egypt and surrounding area and autumn bird migration from the Russia-Kazakhstan region to Europe are important drivers of the emergence of the 2020-2022 H5 panzootic. These findings provide important targets for early warning and could help control the current and future HPAI epidemics.
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Affiliation(s)
- Jinfeng Zeng
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Fanshu Du
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Linna Xiao
- Key Laboratory for Biodiversity Science and Ecological Engineering, Demonstration Center for Experimental Life Sciences & Biotechnology Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Honglei Sun
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Lu Lu
- The Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Weipan Lei
- Key Laboratory for Biodiversity Science and Ecological Engineering, Demonstration Center for Experimental Life Sciences & Biotechnology Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Jialu Zheng
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Lu Wang
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Sicheng Shu
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yudong Li
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qiang Zhang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Kang Tang
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Qianru Sun
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Chi Zhang
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Haoyu Long
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Zekai Qiu
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Ke Zhai
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Zhichao Li
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Geli Zhang
- College of Land Science and Technology, China Agricultural University, Beijing, China
| | - Yipeng Sun
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Dayan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhengwang Zhang
- Key Laboratory for Biodiversity Science and Ecological Engineering, Demonstration Center for Experimental Life Sciences & Biotechnology Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Samantha J. Lycett
- The Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - George F. Gao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Yuelong Shu
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- National Health Commission Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology of Chinese Academy of Medical Science (CAMS)/Peking Union Medical College (PUMC), Beijing, China
| | - Jinhua Liu
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiangjun Du
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Juan Pu
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry Diseases, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
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Ramsubeik S, Stoute S, Crossley B, Rejmanek D, Jerry C, Jackson W, Bland M, Ochoa J. Natural Infection with H5N1 Highly Pathogenic Influenza (HPAI) Virus in 5- and 10-Day-Old Commercial Pekin Ducklings ( Anas platyrhynchos domesticus). Avian Dis 2024; 68:65-71. [PMID: 38687110 DOI: 10.1637/aviandiseases-d-23-00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 12/18/2023] [Indexed: 05/02/2024]
Abstract
Highly pathogenic avian influenza (HPAI) has resulted in catastrophic economic losses globally in poultry. This case report describes the diagnostic detection and pathology of HPAI H5N1 in 5-day-old commercial ducklings, which is an atypical age for detection of natural infection of HPAI in poultry. The pathology observed at 5 days of age was also compared to lesions observed in ducklings from the same flock evaluated at 10 days of age before depopulation. The California Animal Health and Food Safety (CAHFS) Laboratory, Tulare, received ten 5-day-old Pekin duckling (Anas platyrhynchos domesticus) carcasses for diagnostic evaluation due to mortality that started increasing at 3 days of age. The most common gross findings included bilateral pulmonary edema with congestion and enlarged, mottled livers and spleens. Microscopically, cerebral neuronophagia, pancreatic necrosis, and interstitial pneumonia with pulmonary edema were observed in the 5-day-old ducklings. Oropharyngeal and cloacal swabs were positive for avian influenza virus (AIV) by real-time reverse transcriptase PCR. The AIV was typed as HPAI, EA/AM 2.3.4.4b H5N1 goose/Guangdong clade lineage by the National Veterinary Services Laboratory. Ducks at the affected premises were depopulated 4 days after the 5-day-old ducklings were submitted to the CAHFS lab, at which time additional tissue samples were collected for comparison to 10-day-old ducklings on the same premises. Differences in microscopic lesions and AIV tissue distribution were observed between the 5-day and 10-day tissues collected. Notably, microscopic lesions were more severe in the brain and pancreas at 10 days of age. Findings in 10-day-old ducklings included cerebral lymphoplasmacytic perivascular cuffing, gliosis, neuronal degeneration, and pancreatic necrosis. AIV antigen distribution and intensity was greatest in the cerebral tissue of the brains at 10 days and in the lungs at 5 days of age. To the authors' knowledge, published studies are limited on AIV natural infection in domestic ducks less than 9 days of age.
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Affiliation(s)
- Shayne Ramsubeik
- Turlock Branch, University of California, Davis, California Animal Health & Food Safety Laboratory System, Turlock, CA 95380
| | - Simone Stoute
- Turlock Branch, University of California, Davis, California Animal Health & Food Safety Laboratory System, Turlock, CA 95380,
| | - Beate Crossley
- Davis Branch, University of California, Davis, California Animal Health & Food Safety Laboratory System, Davis, CA, 95616
| | - Daniel Rejmanek
- Davis Branch, University of California, Davis, California Animal Health & Food Safety Laboratory System, Davis, CA, 95616
| | - Carmen Jerry
- Turlock Branch, University of California, Davis, California Animal Health & Food Safety Laboratory System, Turlock, CA 95380
| | - Wendi Jackson
- Davis Branch, University of California, Davis, California Animal Health & Food Safety Laboratory System, Davis, CA, 95616
| | - Mark Bland
- Cutler Veterinary Associates International, Napa, CA 94558
| | - Jennine Ochoa
- Tulare Branch, University of California, California Animal Health and Food Safety Laboratory System, Tulare, CA 93274
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Li Y, An Q, Sun Z, Gao X, Wang H. Multifaceted analysis of temporal and spatial distribution and risk factors of global poultry HPAI-H5N1, 2005-2023. Animal 2024; 18:101085. [PMID: 38364655 DOI: 10.1016/j.animal.2024.101085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 02/18/2024] Open
Abstract
The purpose of this study was to analyze the characteristics of occurrence and spread of highly pathogenic avian influenza H5N1 (HPAI-H5N1) globally, understand its spatiotemporal characteristics, investigate the risk factors influencing outbreaks, and identify high-risk areas for disease occurrence. We collected the data on global poultry HPAI-H5N1 outbreaks from January 2005 to April 2023, and conducted a thorough analysis of the spatial and temporal characteristics of the disease through time series decomposition and directional distribution analysis. Additionally, an ecological niche model was established to explore the major factors influencing the occurrence of HPAI-H5N1 and to pinpoint high-risk areas. Our findings revealed that HPAI-H5N1 outbreaks were cyclical, and seasonal, exhibiting a rising trend, with a predominant northwest-southeast transmission direction. The ecological niche model highlighted that species factors and economic trade factors are critical in influencing the outbreak of HPAI-H5N1. Variables such as chicken and duck density, population density, isothermality, and road density, contributed to importantly risk of outbreaks. High-risk areas for HPAI-H5N1 occurrence were primarily identified in Europe, West Africa, Southeast Asia, and Southeast China. This study provided valuable insights into the spatial and temporal distribution characteristics and risk factors of global poultry HPAI-H5N1 outbreaks. The identification of high-risk areas provides essential information that can be used to develop more effective prevention and control policies.
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Affiliation(s)
- Yuepeng Li
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Qi An
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Zhuo Sun
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Xiang Gao
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Hongbin Wang
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China.
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de Araújo AC, Silva LMN, Cho AY, Repenning M, Amgarten D, de Moraes AP, Malta F, Miller M, Dorlass EG, Palameta S, Oliveira DBL, de Araújo J, Arns CW, Durigon EL, Pinho JRR, Lee DH, Ferreira HL. Incursion of Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus, Brazil, 2023. Emerg Infect Dis 2024; 30:619-621. [PMID: 38290826 PMCID: PMC10902554 DOI: 10.3201/eid3003.231157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
We report 4 highly pathogenic avian influenza A(H5N1) clade 2.3.4.4.b viruses in samples collected during June 2023 from Royal terns and Cabot's terns in Brazil. Phylodynamic analysis revealed viral movement from Peru to Brazil, indicating a concerning spread of this clade along the Atlantic Americas migratory bird flyway.
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40
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Wibawa H, Wibowo PE, Supriyadi A, Lestari L, Silaban J, Fuadi AA, Fiqri AJ, Handayani RW, Irianingsih SH, Fahmia Z, Mulyawan H, Idris S, Zainuddin N. Highly Pathogenic Avian Influenza A(H5N1) Virus Clade 2.3.4.4b in Domestic Ducks, Indonesia, 2022. Emerg Infect Dis 2024; 30:586-590. [PMID: 38407163 PMCID: PMC10902521 DOI: 10.3201/eid3003.230973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Abstract
Highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b viruses were isolated from domestic ducks in South Kalimantan, Indonesia, during April 2022. The viruses were genetically similar to those detected in East Asia during 2021-2022. Molecular surveillance of wild birds is needed to detect potential pandemic threats from avian influenza virus.
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41
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Gartrell BD, Jolly MJ, Hunter SA. The risks and consequences of a high pathogenicity avian influenza outbreak in Aotearoa New Zealand. N Z Vet J 2024; 72:63-65. [PMID: 38228153 DOI: 10.1080/00480169.2023.2294915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Affiliation(s)
- B D Gartrell
- Wildbase, Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - M J Jolly
- Wildbase, Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - S A Hunter
- Wildbase, Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Fair JM, Al-Hmoud N, Alrwashdeh M, Bartlow AW, Balkhamishvili S, Daraselia I, Elshoff A, Fakhouri L, Javakhishvili Z, Khoury F, Muzyka D, Ninua L, Tsao J, Urushadze L, Owen J. Transboundary determinants of avian zoonotic infectious diseases: challenges for strengthening research capacity and connecting surveillance networks. Front Microbiol 2024; 15:1341842. [PMID: 38435695 PMCID: PMC10907996 DOI: 10.3389/fmicb.2024.1341842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/19/2024] [Indexed: 03/05/2024] Open
Abstract
As the climate changes, global systems have become increasingly unstable and unpredictable. This is particularly true for many disease systems, including subtypes of highly pathogenic avian influenzas (HPAIs) that are circulating the world. Ecological patterns once thought stable are changing, bringing new populations and organisms into contact with one another. Wild birds continue to be hosts and reservoirs for numerous zoonotic pathogens, and strains of HPAI and other pathogens have been introduced into new regions via migrating birds and transboundary trade of wild birds. With these expanding environmental changes, it is even more crucial that regions or counties that previously did not have surveillance programs develop the appropriate skills to sample wild birds and add to the understanding of pathogens in migratory and breeding birds through research. For example, little is known about wild bird infectious diseases and migration along the Mediterranean and Black Sea Flyway (MBSF), which connects Europe, Asia, and Africa. Focusing on avian influenza and the microbiome in migratory wild birds along the MBSF, this project seeks to understand the determinants of transboundary disease propagation and coinfection in regions that are connected by this flyway. Through the creation of a threat reduction network for avian diseases (Avian Zoonotic Disease Network, AZDN) in three countries along the MBSF (Georgia, Ukraine, and Jordan), this project is strengthening capacities for disease diagnostics; microbiomes; ecoimmunology; field biosafety; proper wildlife capture and handling; experimental design; statistical analysis; and vector sampling and biology. Here, we cover what is required to build a wild bird infectious disease research and surveillance program, which includes learning skills in proper bird capture and handling; biosafety and biosecurity; permits; next generation sequencing; leading-edge bioinformatics and statistical analyses; and vector and environmental sampling. Creating connected networks for avian influenzas and other pathogen surveillance will increase coordination and strengthen biosurveillance globally in wild birds.
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Affiliation(s)
- Jeanne M. Fair
- Genomics and Bioanalytics, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Nisreen Al-Hmoud
- Bio-Safety and Bio-Security Center, Royal Scientific Society, Amman, Jordan
| | - Mu’men Alrwashdeh
- Bio-Safety and Bio-Security Center, Royal Scientific Society, Amman, Jordan
| | - Andrew W. Bartlow
- Genomics and Bioanalytics, Los Alamos National Laboratory, Los Alamos, NM, United States
| | | | - Ivane Daraselia
- Center of Wildlife Disease Ecology, Ilia State University, Tbilisi, Georgia
| | | | | | - Zura Javakhishvili
- Center of Wildlife Disease Ecology, Ilia State University, Tbilisi, Georgia
| | - Fares Khoury
- Department of Biology and Biotechnology, American University of Madaba, Madaba, Jordan
| | - Denys Muzyka
- National Scientific Center, Institute of Experimental and Clinical Veterinary Medicine, Kharkiv, Ukraine
| | | | - Jean Tsao
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, United States
| | - Lela Urushadze
- National Center for Disease Control and Public Health (NCDC) of Georgia, Tbilisi, Georgia
| | - Jennifer Owen
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, United States
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Kim JY, Jeong S, Kim DW, Lee DW, Lee DH, Kim D, Kwon JH. Genomic epidemiology of highly pathogenic avian influenza A (H5N1) virus in wild birds in South Korea during 2021-2022: Changes in viral epidemic patterns. Virus Evol 2024; 10:veae014. [PMID: 38455682 PMCID: PMC10919474 DOI: 10.1093/ve/veae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/28/2024] [Accepted: 02/06/2024] [Indexed: 03/09/2024] Open
Abstract
Clade 2.3.4.4b highly pathogenic avian influenza A (HPAI) viruses have been detected in wild birds worldwide, causing recurrent outbreaks since 2016. During the winter of 2021-2022, we detected one H5N8 and forty-three H5N1 clade 2.3.4.4b HPAI viruses from wild birds in South Korea. Phylogenetic analysis revealed that HA gene of H5N1 viruses was divided into two genetically distinct groups (N1.G1 and N1.G2). Bayesian phylodynamic analysis demonstrated that wild birds play a vital role in viral transmission and long-term maintenance. We identified five genotypes (N1.G1.1, N1.G2, N1.G2.1, N1.G2.2, and N1.G2.2.1) having distinct gene segment constellations most probably produced by reassortments with low-pathogenic avian influenza viruses. Our results suggest that clade 2.3.4.4b persists in wild birds for a long time, causing continuous outbreaks, compared with previous clades of H5 HPAI viruses. Our study emphasizes the need for enhancing control measures in response to the changing viral epidemiology.
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Affiliation(s)
- Ji-Yun Kim
- College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea
| | - Sol Jeong
- Wildlife Disease Research Team, National Institute of Wildlife Disease Control and Prevention (NIWDC), Ministry of Environment, 1, Songam-gil, Gwangju 62407, Republic of Korea
| | - Da-Won Kim
- College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea
| | - Dong-Wook Lee
- College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea
| | - Dong-Hun Lee
- College of Veterinary Medicine, Konkuk University, 120, Neungdong-ro, Seoul 05029, Republic of Korea
| | - Daehun Kim
- Wildlife Disease Research Team, National Institute of Wildlife Disease Control and Prevention (NIWDC), Ministry of Environment, 1, Songam-gil, Gwangju 62407, Republic of Korea
| | - Jung-Hoon Kwon
- College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea
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Goraichuk IV, Harden M, Spackman E, Suarez DL. The 28S rRNA RT-qPCR assay for host depletion evaluation to enhance avian virus detection in Illumina and Nanopore sequencing. Front Microbiol 2024; 15:1328987. [PMID: 38351914 PMCID: PMC10864109 DOI: 10.3389/fmicb.2024.1328987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/09/2024] [Indexed: 02/16/2024] Open
Abstract
Abundant host and bacterial sequences can obscure the detection of less prevalent viruses in untargeted next-generation sequencing (NGS). Efficient removal of these non-targeted sequences is vital for accurate viral detection. This study presents a novel 28S ribosomal RNA (rRNA) RT-qPCR assay designed to assess the efficiency of avian rRNA depletion before conducting costly NGS for the detection of avian RNA viruses. The comprehensive evaluation of this 28S-test focuses on substituting DNase I with alternative DNases in our established depletion protocols and finetuning essential parameters for reliable host rRNA depletion. To validate the effectiveness of the 28S-test, we compared its performance with NGS results obtained from both Illumina and Nanopore sequencing platforms. This evaluation utilized swab samples from chickens infected with highly pathogenic avian influenza virus, subjected to established and modified depletion protocols. Both methods significantly reduced host rRNA levels, but using the alternative DNase had superior performance. Additionally, utilizing the 28S-test, we explored cost- and time-effective strategies, such as reduced probe concentrations and other alternative DNase usage, assessed the impact of filtration pre-treatment, and evaluated various experimental parameters to further optimize the depletion protocol. Our findings underscore the value of the 28S-test in optimizing depletion methods for advancing improvements in avian disease research through NGS.
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Affiliation(s)
- Iryna V. Goraichuk
- Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agriculture Research Service, U.S. Department of Agriculture, Athens, GA, United States
| | - Mark Harden
- College of Veterinary Medicine, Tuskegee University, Tuskegee, AL, United States
| | - Erica Spackman
- Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agriculture Research Service, U.S. Department of Agriculture, Athens, GA, United States
| | - David L. Suarez
- Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agriculture Research Service, U.S. Department of Agriculture, Athens, GA, United States
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Caliendo V, Kleyheeg E, Beerens N, Camphuysen KCJ, Cazemier R, Elbers ARW, Fouchier RAM, Kelder L, Kuiken T, Leopold M, Slaterus R, Spierenburg MAH, van der Jeugd H, Verdaat H, Rijks JM. Effect of 2020-21 and 2021-22 Highly Pathogenic Avian Influenza H5 Epidemics on Wild Birds, the Netherlands. Emerg Infect Dis 2024; 30:50-57. [PMID: 38040665 PMCID: PMC10756359 DOI: 10.3201/eid3001.230970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023] Open
Abstract
The number of highly pathogenic avian influenza (HPAI) H5-related infections and deaths of wild birds in Europe was high during October 1, 2020-September 30, 2022. To quantify deaths among wild species groups with known susceptibility for HPAI H5 during those epidemics, we collected and recorded mortality data of wild birds in the Netherlands. HPAI virus infection was reported in 51 bird species. The species with the highest numbers of reported dead and infected birds varied per epidemic year; in 2020-21, they were within the Anatidae family, in particular barnacle geese (Branta leucopsis) and in 2021-22, they were within the sea bird group, particularly Sandwich terns (Thalasseus sandvicensis) and northern gannet (Morus bassanus). Because of the difficulty of anticipating and modeling the future trends of HPAI among wild birds, we recommend monitoring live and dead wild birds as a tool for surveillance of the changing dynamics of HPAI.
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Ramey AM, Scott LC, Ahlstrom CA, Buck EJ, Williams AR, Kim Torchetti M, Stallknecht DE, Poulson RL. Molecular detection and characterization of highly pathogenic H5N1 clade 2.3.4.4b avian influenza viruses among hunter-harvested wild birds provides evidence for three independent introductions into Alaska. Virology 2024; 589:109938. [PMID: 37977084 DOI: 10.1016/j.virol.2023.109938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
We detected and characterized highly pathogenic avian influenza viruses among hunter-harvested wild waterfowl inhabiting western Alaska during September-October 2022 using a molecular sequencing pipeline applied to RNA extracts derived directly from original swab samples. Genomic characterization of 10 H5 clade 2.3.4.4b avian influenza viruses detected with high confidence provided evidence for three independent viral introductions into Alaska. Our results highlight the utility and some potential limits of applying molecular processing approaches directly to RNA extracts from original swab samples for viral research and monitoring.
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Affiliation(s)
- Andrew M Ramey
- U.S. Geological Survey Alaska Science Center, Anchorage, AK, USA.
| | - Laura C Scott
- U.S. Geological Survey Alaska Science Center, Anchorage, AK, USA
| | | | - Evan J Buck
- U.S. Geological Survey Alaska Science Center, Anchorage, AK, USA
| | - Alison R Williams
- U.S. Fish and Wildlife Service Izembek National Wildlife Refuge, Cold Bay, Alaska, USA
| | - Mia Kim Torchetti
- U.S. Department of Agriculture National Veterinary Services Laboratories, Ames, IA, USA
| | - David E Stallknecht
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Rebecca L Poulson
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
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Seekings AH, Liang Y, Warren CJ, Hjulsager CK, Thomas SS, Lean FZX, Nunez A, Skinner P, Selden D, Falchieri M, Simmons H, Brown IH, Larsen LE, Banyard AC, Slomka MJ. Transmission dynamics and pathogenesis differ between pheasants and partridges infected with clade 2.3.4.4b H5N8 and H5N1 high-pathogenicity avian influenza viruses. J Gen Virol 2024; 105. [PMID: 38289661 DOI: 10.1099/jgv.0.001946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
During the UK 2020-2021 epizootic of H5Nx clade 2.3.4.4b high-pathogenicity avian influenza viruses (HPAIVs), high mortality occurred during incursions in commercially farmed common pheasants (Phasianus colchicus). Two pheasant farms, affected separately by H5N8 and H5N1 subtypes, included adjacently housed red-legged partridges (Alectoris rufa), which appeared to be unaffected. Despite extensive ongoing epizootics, H5Nx HPAIV partridge outbreaks were not reported during 2020-2021 and 2021-2022 in the UK, so it is postulated that partridges are more resistant to HPAIV infection than other gamebirds. To assess this, pathogenesis and both intra- and inter-species transmission of UK pheasant-origin H5N8-2021 and H5N1-2021 HPAIVs were investigated. Onward transmission to chickens was also assessed to better understand the risk of spread from gamebirds to other commercial poultry sectors. A lower infectious dose was required to infect pheasants with H5N8-2021 compared to H5N1-2021. However, HPAIV systemic dissemination to multiple organs within pheasants was more rapid following infection with H5N1-2021 than H5N8-2021, with the former attaining generally higher viral RNA levels in tissues. Intraspecies transmission to contact pheasants was successful for both viruses and associated with viral environmental contamination, while interspecies transmission to a first chicken-contact group was also efficient. However, further onward transmission to additional chicken contacts was only achieved with H5N1-2021. Intra-partridge transmission was only successful when high-dose H5N1-2021 was administered, while partridges inoculated with H5N8-2021 failed to shed and transmit, although extensive tissue tropism was observed for both viruses. Mortalities among infected partridges featured a longer incubation period compared to that in pheasants, for both viruses. Therefore, the susceptibility of different gamebird species and pathogenicity outcomes to the ongoing H5Nx clade 2.3.4.4b HPAIVs varies, but pheasants represent a greater likelihood of H5Nx HPAIV introduction into galliforme poultry settings. Consequently, viral maintenance within gamebird populations and risks to poultry species warrant enhanced investigation.
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Affiliation(s)
- Amanda H Seekings
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Yuan Liang
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
| | - Caroline J Warren
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Charlotte K Hjulsager
- Department of Virus and Microbiological Special Diagnostics, Statens Serum Institut, 2300 Copenhagen S, Denmark
| | - Saumya S Thomas
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Fabian Z X Lean
- Pathology and Animal Sciences Department, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, AL9 7TA, UK
| | - Alejandro Nunez
- Pathology and Animal Sciences Department, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Paul Skinner
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - David Selden
- Pathology and Animal Sciences Department, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Marco Falchieri
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Hugh Simmons
- Pathology and Animal Sciences Department, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Ian H Brown
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Lars E Larsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
| | - Ashley C Banyard
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
| | - Marek J Slomka
- Department of Virology, Animal and Plant Health Agency (APHA), Woodham Lane, New Haw, Addlestone, KT15 3NB, UK
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48
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Fu X, Wang Q, Ma B, Zhang B, Sun K, Yu X, Ye Z, Zhang M. Advances in Detection Techniques for the H5N1 Avian Influenza Virus. Int J Mol Sci 2023; 24:17157. [PMID: 38138987 PMCID: PMC10743243 DOI: 10.3390/ijms242417157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Avian influenza is caused by avian influenza virus infection; the H5N1 avian influenza virus is a highly pathogenic subtype, affecting poultry and human health. Since the discovery of the highly pathogenic subtype of the H5N1 avian influenza virus, it has caused enormous losses to the poultry farming industry. It was recently found that the H5N1 avian influenza virus tends to spread among mammals. Therefore, early rapid detection methods are highly significant for effectively preventing the spread of H5N1. This paper discusses the detection technologies used in the detection of the H5N1 avian influenza virus, including serological detection technology, immunological detection technology, molecular biology detection technology, genetic detection technology, and biosensors. Comparisons of these detection technologies were analyzed, aiming to provide some recommendations for the detection of the H5N1 avian influenza virus.
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Affiliation(s)
| | | | | | | | | | | | | | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Science, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China; (X.F.); (Q.W.); (B.M.); (B.Z.); (K.S.); (X.Y.); (Z.Y.)
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49
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Chestakova IV, van der Linden A, Bellido Martin B, Caliendo V, Vuong O, Thewessen S, Hartung T, Bestebroer T, Dekker J, Jonge Poerink B, Gröne A, Koopmans M, Fouchier R, van den Brand JMA, Sikkema RS. High number of HPAI H5 virus infections and antibodies in wild carnivores in the Netherlands, 2020-2022. Emerg Microbes Infect 2023; 12:2270068. [PMID: 37842795 PMCID: PMC10732216 DOI: 10.1080/22221751.2023.2270068] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 10/05/2023] [Indexed: 10/17/2023]
Abstract
In October 2020, a new lineage of a clade 2.3.4.4b HPAI virus of the H5 subtype emerged in Europe, resulting in the largest global outbreak of HPAI to date, with unprecedented mortality in wild birds and poultry. The virus appears to have become enzootic in birds, continuously yielding novel HPAI virus variants. The recently increased abundance of infected birds worldwide increases the probability of bird-mammal contact, particularly in wild carnivores. Here, we performed molecular and serological screening of over 500 dead wild carnivores and sequencing of RNA positive materials. We show virological evidence for HPAI H5 virus infection in 0.8%, 1.4%, and 9.9% of animals tested in 2020, 2021, and 2022 respectively, with the highest proportion of positives in foxes, polecats and stone martens. We obtained near full genomes of 7 viruses and detected PB2 amino acid substitutions known to play a role in mammalian adaptation in three sequences. Infections were also found in without neurological signs or mortality. Serological evidence for infection was detected in 20% of the study population. These findings suggests that a high proportion of wild carnivores is infected but undetected in current surveillance programmes. We recommend increased surveillance in susceptible mammals, irrespective of neurological signs or encephalitis.
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Affiliation(s)
| | | | | | - Valentina Caliendo
- Dutch Wildlife Health Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Oanh Vuong
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
| | - Sanne Thewessen
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
| | - Tijmen Hartung
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
| | - Theo Bestebroer
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
| | - Jasja Dekker
- Jasja Dekker Dierecologie B.V., Arnhem, The Netherlands
| | | | - Andrea Gröne
- Dutch Wildlife Health Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Division of Pathology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Marion Koopmans
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
| | - Ron Fouchier
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
| | - Judith M. A. van den Brand
- Dutch Wildlife Health Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Division of Pathology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Reina S. Sikkema
- Department of Viroscience, ErasmusMC, Rotterdam, The Netherlands
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50
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Aznar I, Kohnle L, Stoicescu A, van Houtum A, Zancanaro G. Annual report on surveillance for avian influenza in poultry and wild birds in Member States of the European Union in 2022. EFSA J 2023; 21:e8480. [PMID: 38099051 PMCID: PMC10719745 DOI: 10.2903/j.efsa.2023.8480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023] Open
Abstract
All European Union (EU) Member States (MSs) are required to implement surveillance for avian influenza (AI) in poultry and wild birds and (i) to notify the outbreaks, when relevant and (ii) to report the results to the responsible authority. In addition, Iceland, Norway, Switzerland and the United Kingdom (Northern Ireland) also implement ongoing surveillance programmes to monitor occurrences of avian influenza viruses (AIVs) in poultry and wild birds. EFSA received a mandate from the European Commission to collate, validate, analyse and summarise the data resulting from these AI surveillance programmes in an annual report. The present report summarises the results of the surveillance activities carried out in MSs, Iceland, Norway, Switzerland and the United Kingdom (Northern Ireland) in 2022. Overall, the 31 reporting countries (RCs) sampled 22,171 poultry establishments (PEs) during the 2022 surveillance activity: 18,490 PEs were sampled for serological testing and 3775 were sampled for virological testing. Some PEs were therefore sampled for both type of analytical methods. Out of the 18,490 PEs sampled for serological testing, 15 (0.08%) were seropositive for influenza A(H5) viruses. Out of the 3775 PEs sampled for virological testing, 74 PEs (1.96%) were positive to the virological assay for influenza A(H5) viruses. Seropositive PEs were found in four RCs (Belgium, Poland, Spain and Sweden) and as in previous years, the highest percentages of seropositive PEs were found in PEs raising breeding geese and waterfowl game birds. Out of these 15 seropositive PEs, 3 also tested positive by polymerase chain reaction (PCR) for influenza A (H5) viruses - 2 for highly pathogenic avian influenza virus (HPAIV) and 1 low pathogenic avian influenza (LPAI) (H5N3). In relation to the virological surveys, 10 RCs (32%) out of the 31 reported the detection of A (H5) viruses in 74 PEs, covering 12 different poultry categories. More specifically, 54 reported HPAIV A(H5N1), 17 HPAIV (H5N8), 2 AIV (H5N1) with unknown virus pathogenicity and 1 low pathogenic avian influenza (LPAI) (H5N3). Additionally, six PEs tested positive for undefined AIVs in three RCs. A total of 32,143 wild birds were sampled, with 4163 (12.95%) wild birds testing positive for HPAIVs by PCR, from 25 RCs. In contrast to previous years, out of the 4163 wild birds testing positive for HPAIv, subtype A(H5N1) virus was the main influenza A virus subtype identified among the wild bird testing positive for HPAIVs (3942; 95%). In addition, RCs also reported 984 wild birds testing positive for low pathogenic avian influenza (LPAI). Out of those, for 660 (67%) it was ascertained that the subtype was non-A(H5/H7); 260 (26%) wild birds tested positive for LPAIv of A(H5 or H7) subtypes and the remaining 64 (7%) LPAI viruses were belonging to other H-subtypes.
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