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Siegers JY, Wille M, Yann S, Tok S, Sin S, Chea S, Porco A, Sours S, Chim V, Chea S, Chhel K, Tum S, Sorn S, Hak M, Thielen P, Dhanasekaran V, Karlsson EA. Detection and phylogenetic analysis of contemporary H14N2 Avian influenza A virus in domestic ducks in Southeast Asia (Cambodia). Emerg Microbes Infect 2024; 13:2297552. [PMID: 38112157 PMCID: PMC11025406 DOI: 10.1080/22221751.2023.2297552] [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: 10/02/2023] [Accepted: 12/17/2023] [Indexed: 12/20/2023]
Abstract
Avian influenza virus (AIV) in Asia is a complex system with numerous subtypes and a highly porous wild birds-poultry interface. Certain AIV subtypes, such as H14, are underrepresented in current surveillance efforts, leaving gaps in our understanding of their ecology and evolution. The detection of rare subtype H14 in domestic ducks in Southeast Asia comprises a geographic region and domestic bird population previously unassociated with this subtype. These H14 viruses have a complex evolutionary history involving gene reassortment events. They share sequence similarity to AIVs endemic in Cambodian ducks, and Eurasian low pathogenicity and high pathogenicity H5Nx AIVs. The detection of these H14 viruses in Southeast Asian domestic poultry further advances our knowledge of the ecology and evolution of this subtype and reinforces the need for continued, longitudinal, active surveillance in domestic and wild birds. Additionally, in vivo and in vitro risk assessment should encompass rare AIV subtypes, as they have the potential to establish in poultry systems.
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Affiliation(s)
- Jurre Y. Siegers
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Michelle Wille
- Centre for Pathogen Genomics, Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
- WHO Collaborating Centre for Reference and Research on Influenza, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Sokhoun Yann
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Songha Tok
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Sarath Sin
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Sokha Chea
- Wildlife Conservation Society, Phnom Penh, Cambodia
| | - Alice Porco
- Wildlife Conservation Society, Phnom Penh, Cambodia
| | - Sreyem Sours
- Wildlife Conservation Society, Phnom Penh, Cambodia
| | - Vutha Chim
- National Animal Health and Production Research Institute, Phnom Penh, Cambodia
| | - Samban Chea
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Kimtuo Chhel
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Sothyra Tum
- National Animal Health and Production Research Institute, Phnom Penh, Cambodia
| | - San Sorn
- National Animal Health and Production Research Institute, Phnom Penh, Cambodia
| | - Makara Hak
- Food and Agriculture Organization of the United Nations Country Office, Phnom Penh, Cambodia
| | - Peter Thielen
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
| | - Vijaykrishna Dhanasekaran
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, People’s Republic of China
- HKU-Pasteur Research Pole, School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, People’s Republic of China
| | - Erik A. Karlsson
- Virology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
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Blue-Winged Teals in Guatemala and Their Potential Role in the Ecology of H14 Subtype Influenza a Viruses. Viruses 2023; 15:v15020483. [PMID: 36851697 PMCID: PMC9961055 DOI: 10.3390/v15020483] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Wild aquatic birds are considered the natural hosts of 16 HA (H1-H16) and 9 NA (N1-N9) subtypes of influenza A viruses (FLUAV) found in different combinations. H14 FLUAVs are rarely detected in nature. Since 2011, H14 FLUAVs have been consistently detected in Guatemala, leading to the largest collection of this subtype from a single country. All H14 FLUAVs in Guatemala were detected from blue-winged teal samples. In this report, 17 new full-length H14 FLUAV genome sequences detected from 2014 until 2019 were analyzed and compared to all published H14 sequences, including Guatemala, North America, and Eurasia. The H14 FLUAVs identified in Guatemala were mostly associated with the N3 subtype (n = 25), whereas the rest were paired with either N4 (n = 7), N5 (n = 4), N6 (n = 1), and two mixed infections (N3/N5 n = 2, and N2/N3 n = 1). H14 FLUAVs in Guatemala belong to a distinct H14 lineage in the Americas that is evolving independently from the Eurasian H14 lineage. Of note, the ORF of the H14 HA segments showed three distinct motifs at the cleavage site, two of these containing arginine instead of lysine in the first and fourth positions, not previously described in other countries. The effects of these mutations on virus replication, virulence, and/or transmission remain unknown and warrant further studies.
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Ramey AM, DeLiberto TJ, Berhane Y, Swayne DE, Stallknecht DE. Lessons learned from research and surveillance directed at highly pathogenic influenza A viruses in wild birds inhabiting North America. Virology 2018; 518:55-63. [PMID: 29453059 DOI: 10.1016/j.virol.2018.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/29/2018] [Accepted: 02/02/2018] [Indexed: 11/19/2022]
Abstract
Following detections of highly pathogenic (HP) influenza A viruses (IAVs) in wild birds inhabiting East Asia after the turn of the millennium, the intensity of sampling of wild birds for IAVs increased throughout much of North America. The objectives for many research and surveillance efforts were directed towards detecting Eurasian origin HP IAVs and understanding the potential of such viruses to be maintained and dispersed by wild birds. In this review, we highlight five important lessons learned from research and surveillance directed at HP IAVs in wild birds inhabiting North America: (1) Wild birds may disperse IAVs between North America and adjacent regions via migration, (2) HP IAVs can be introduced to wild birds in North America, (3) HP IAVs may cross the wild bird-poultry interface in North America, (4) The probability of encountering and detecting a specific virus may be low, and (5) Population immunity of wild birds may influence HP IAV outbreaks in North America. We review empirical support derived from research and surveillance efforts for each lesson learned and, furthermore, identify implications for future surveillance efforts, biosecurity, and population health. We conclude our review by identifying five additional areas in which we think future mechanistic research relative to IAVs in wild birds in North America are likely to lead to other important lessons learned in the years ahead.
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Affiliation(s)
- Andrew M Ramey
- US Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA.
| | - Thomas J DeLiberto
- National Wildlife Disease Program, Wildlife Services, Animal and Plant Health Inspection Service, US Department of Agriculture, Fort Collins, CO 80521, USA
| | - Yohannes Berhane
- Canadian Food Inspection Agency, National Centre for Foreign Animal Disease, Winnipeg, Manitoba, Canada R3E 3M4; Department of Animal Science, University of Manitoba, Winnipeg, Canada
| | - David E Swayne
- Exotic and Emerging Avian Viral Diseases Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA, USA
| | - David E Stallknecht
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
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Gonzalez-Reiche AS, Müller ML, Ortiz L, Cordón-Rosales C, Perez DR. Prevalence and Diversity of Low Pathogenicity Avian Influenza Viruses in Wild Birds in Guatemala, 2010-2013. Avian Dis 2017; 60:359-64. [PMID: 27309080 DOI: 10.1637/11130-050715-reg] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Waterfowl species are known to harbor the greatest diversity of low pathogenicity influenza A virus (LPAIV) subtypes and are recognized as their main natural reservoir. In Guatemala there is evidence of circulation of LPAIV in wild ducks; however, the bird species contributing to viral diversity during the winter migration in Central America are unknown. In this study, samples obtained from 1250 hunter-killed birds from 22 different species were collected on the Pacific coast of Guatemala during three winter migration seasons between 2010 and 2013. Prevalence of LPAIV detected by real-time reverse-transcriptase polymerase chain reaction was 38.2%, 23.5%, and 24.7% in the 2010-11, 2011-12, and 2012-13 seasons, respectively. The highest virus prevalence was detected in the northern shoveler (Anas clypeata), followed by the blue-winged teal (Anas discors). The majority of positive samples and viral isolates were obtained from the blue-winged teal. Analysis of LPAIV prevalence over time in this species indicated a decreasing trend in monthly prevalence within a migration season. Sixty-eight viruses were isolated, and nine HA and seven NA subtypes were identified in 19 subtype combinations. In 2012-13 the most prevalent subtype was H14, a subtype identified for the first time in the Western Hemisphere in 2010. The results from this study represent the most detailed description available to date of LPAIV circulation in Central America.
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Affiliation(s)
- Ana S Gonzalez-Reiche
- A Department of Population Health, Poultry Diagnostic and Research Center, College of Veterinary Medicine, University of Georgia, 953 College Station Road, Athens, GA 30602.,B Laboratorio de Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), 18 Ave. 11-95, Zona 15 V.H.3, Guatemala City, Guatemala 01015.,C Department of Veterinary Medicine, University of Maryland College Park, and Virginia-Maryland Regional College of Veterinary Medicine, 8075 Greenmead Drive, College Park, MD 20742
| | - Maria L Müller
- B Laboratorio de Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), 18 Ave. 11-95, Zona 15 V.H.3, Guatemala City, Guatemala 01015
| | - Lucía Ortiz
- B Laboratorio de Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), 18 Ave. 11-95, Zona 15 V.H.3, Guatemala City, Guatemala 01015
| | - Celia Cordón-Rosales
- B Laboratorio de Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), 18 Ave. 11-95, Zona 15 V.H.3, Guatemala City, Guatemala 01015
| | - Daniel R Perez
- A Department of Population Health, Poultry Diagnostic and Research Center, College of Veterinary Medicine, University of Georgia, 953 College Station Road, Athens, GA 30602
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Latorre-Margalef N, Ramey AM, Fojtik A, Stallknecht DE. Serologic Evidence of Influenza A (H14) Virus Introduction into North America. Emerg Infect Dis 2016; 21:2257-9. [PMID: 26584425 PMCID: PMC4672416 DOI: 10.3201/eid2112.150413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Ramey AM, Reeves AB, Poulson RL, Carter DL, Davis-Fields N, Stallknecht DE. Genome Sequence of a Novel H14N7 Subtype Influenza A Virus Isolated from a Blue-Winged Teal (Anas discors) Harvested in Texas, USA. GENOME ANNOUNCEMENTS 2016; 4:e00520-16. [PMID: 27284136 PMCID: PMC4901227 DOI: 10.1128/genomea.00520-16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 04/29/2016] [Indexed: 11/26/2022]
Abstract
We report here the complete genome sequence of a novel H14N7 subtype influenza A virus (IAV) isolated from a blue-winged teal (Anas discors) harvested in Texas, USA. The genomic characteristics of this IAV strain with a previously undetected subtype combination suggest recent viral evolution within the New World wild-bird IAV reservoir.
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Affiliation(s)
- Andrew M Ramey
- U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska, USA
| | - Andrew B Reeves
- U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska, USA
| | - Rebecca L Poulson
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, Athens, Georgia, USA
| | - Deborah L Carter
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, Athens, Georgia, USA
| | - Nicholas Davis-Fields
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, Athens, Georgia, USA
| | - David E Stallknecht
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, Athens, Georgia, USA
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Avian Influenza Virus with Hemagglutinin-Neuraminidase Combination H3N6, Isolated from a Domestic Pigeon in Guangxi, Southern China. GENOME ANNOUNCEMENTS 2015; 3:3/1/e01537-14. [PMID: 25657287 PMCID: PMC4319612 DOI: 10.1128/genomea.01537-14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The H3 subtype of avian influenza virus can provide genes for human influenza virus through gene reassortment, which has raised great concerns about its potential threat to human health. An H3N6 subtype of avian influenza virus was isolated from Guangxi Province, China, in 2009. All eight gene segments of the strain were sequenced. The sequence analysis indicated that this H3N6 virus was a nature reassortant virus. The genome sequences now can be used to understand the epidemiological and molecular characteristics of the H3N6 influenza virus in southern China.
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Fries AC, Nolting JM, Bowman AS, Killian ML, Wentworth DE, Slemons RD. Genomic analyses detect Eurasian-lineage H10 and additional H14 influenza A viruses recovered from waterfowl in the Central United States. Influenza Other Respir Viruses 2014; 8:493-8. [PMID: 24698181 PMCID: PMC4057966 DOI: 10.1111/irv.12250] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2014] [Indexed: 11/27/2022] Open
Abstract
The accurate and timely characterization of influenza A viruses (IAV) from natural reservoirs is essential for responses to animal and public health threats. Differences between antigenic and genetic subtyping results for 161 IAV isolates recovered from migratory birds in the central United States during 2010-2011 delayed the recognition of four isolates of interest. Genomic sequencing identified the first reported Eurasian-origin H10 subtype in North America and three additional H14 isolates showing divergence from previously reported H14 isolates. Genomic analyses revealed additional diversity among IAV isolates not detected by antigenic subtyping and provided further insight into interhemispheric spread of avian-origin IAVs.
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Affiliation(s)
- Anthony C Fries
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH, USA; Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, USA
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Ramey AM, Poulson RL, González-Reiche AS, Perez DR, Stallknecht DE, Brown JD. Genomic characterization of H14 subtype Influenza A viruses in new world waterfowl and experimental infectivity in mallards (Anas platyrhynchos). PLoS One 2014; 9:e95620. [PMID: 24788792 PMCID: PMC4006863 DOI: 10.1371/journal.pone.0095620] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 03/28/2014] [Indexed: 11/18/2022] Open
Abstract
Recent repeated isolation of H14 hemagglutinin subtype influenza A viruses (IAVs) in the New World waterfowl provides evidence to suggest that host and/or geographic ranges for viruses of this subtype may be expanding. In this study, we used genomic analyses to gain inference on the origin and evolution of H14 viruses in New World waterfowl and conducted an experimental challenge study in mallards (Anas platyrhynchos) to evaluate pathogenicity, viral replication, and transmissibility of a representative viral strain in a natural host species. Genomic characterization of H14 subtype IAVs isolated from New World waterfowl, including three isolates sequenced specifically for this study, revealed high nucleotide identity among individual gene segments (e.g. ≥95% shared identity among H14 HA gene segments). In contrast, lower shared identity was observed among internal gene segments. Furthermore, multiple neuraminidase subtypes were observed for H14 IAVs isolated in the New World. Gene segments of H14 viruses isolated after 2010 shared ancestral genetic lineages with IAVs isolated from wild birds throughout North America. Thus, genomic characterization provided evidence for viral evolution in New World waterfowl through genetic drift and genetic shift since purported introduction from Eurasia. In the challenge study, no clinical disease or lesions were observed among mallards experimentally inoculated with A/blue-winged teal/Texas/AI13-1028/2013(H14N5) or exposed via contact with infected birds. Titers of viral shedding for mallards challenged with the H14N5 IAV were highest at two days post-inoculation (DPI); however shedding was detected up to nine DPI using cloacal swabs. The distribution of viral antigen among mallards infected with H14N5 IAV was largely restricted to enterocytes lining the villi in the lower intestinal tract and in the epithelium of the bursa of Fabricius. Characterization of the infectivity of A/blue-winged teal/Texas/AI13-1028/2013(H14N5) in mallards provides support for similarities in viral replication and shedding as compared to previously described waterfowl-adapted, low pathogenic IAV strains in ducks.
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Affiliation(s)
- Andrew M. Ramey
- US Geological Survey, Alaska Science Center, Anchorage, Alaska, United States of America
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, Department of Population Health, The University of Georgia, Athens, Georgia, United States of America
| | - Rebecca L. Poulson
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, Department of Population Health, The University of Georgia, Athens, Georgia, United States of America
| | - Ana S. González-Reiche
- Department of Veterinary Medicine, University of Maryland College Park, Virginia-Maryland Regional College of Veterinary Medicine, College Park, Maryland, United States of America
- Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - Daniel R. Perez
- Department of Veterinary Medicine, University of Maryland College Park, Virginia-Maryland Regional College of Veterinary Medicine, College Park, Maryland, United States of America
| | - David E. Stallknecht
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, Department of Population Health, The University of Georgia, Athens, Georgia, United States of America
| | - Justin D. Brown
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, Department of Population Health, The University of Georgia, Athens, Georgia, United States of America
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