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Falchieri M, Reid SM, Dastderji A, Cracknell J, Warren CJ, Mollett BC, Peers-Dent J, Schlachter ALD, Mcginn N, Hepple R, Thomas S, Ridout S, Quayle J, Pizzi R, Núñez A, Byrne AMP, James J, Banyard AC. Rapid mortality in captive bush dogs ( Speothos venaticus) caused by influenza A of avian origin (H5N1) at a wildlife collection in the United Kingdom. Emerg Microbes Infect 2024; 13:2361792. [PMID: 38828793 PMCID: PMC11155434 DOI: 10.1080/22221751.2024.2361792] [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: 04/15/2024] [Accepted: 05/27/2024] [Indexed: 06/05/2024]
Abstract
Europe has suffered unprecedented epizootics of high pathogenicity avian influenza (HPAI) clade 2.3.4.4b H5N1 since Autumn 2021. As well as impacting upon commercial and wild avian species, the virus has also infected mammalian species more than ever observed previously. Mammalian species involved in spill over events have primarily been scavenging terrestrial carnivores and farmed mammalian species although marine mammals have also been affected. Alongside reports of detections of mammalian species found dead through different surveillance schemes, several mass mortality events have been reported in farmed and wild animals. In November 2022, an unusual mortality event was reported in captive bush dogs (Speothos venaticus) with clade 2.3.4.4b H5N1 HPAIV of avian origin being the causative agent. The event involved an enclosure of 15 bush dogs, 10 of which succumbed during a nine-day period with some dogs exhibiting neurological disease. Ingestion of infected meat is proposed as the most likely infection route.
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Affiliation(s)
- Marco Falchieri
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Scott M. Reid
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Akbar Dastderji
- Mammalian Virology Investigation Unit, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | | | - Caroline J. Warren
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Benjamin C. Mollett
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Jacob Peers-Dent
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Audra-Lynne D. Schlachter
- Department of Pathology and Animal Sciences, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Natalie Mcginn
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Richard Hepple
- APHA Field Epidemiology Team, APHA Bridgwater, Rivers House, East Quay, Bridgwater, UK
| | - Saumya Thomas
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Susan Ridout
- APHA Field Epidemiology Team, APHA Hornbeam House, Electra Way, Crewe, Cheshire, UK
| | | | | | - Alejandro Núñez
- Department of Pathology and Animal Sciences, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Alexander M. P. Byrne
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
- Worldwide Influenza Centre, The Francis Crick Institute, London, UK
| | - Joe James
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
- WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
| | - Ashley C. Banyard
- Influenza and Avian Virology Team, Department of Virology, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
- WOAH/FAO International Reference Laboratory for Avian Influenza, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, UK
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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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Segawa T, Takahashi A, Kokubun N, Ishii S. Spread of antibiotic resistance genes to Antarctica by migratory birds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171345. [PMID: 38447711 DOI: 10.1016/j.scitotenv.2024.171345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/25/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
Recent studies have highlighted the presence of antibiotic resistance genes (ARGs) in Antarctica, which are typically indicative of human activity. However, these studies have concentrated in the Antarctic Peninsula region, and relatively less is known about ARG prevalence in East Antarctica, where human activity levels are lower compared to the Antarctic Peninsula. In addition, the mechanisms of ARG transmission to Antarctica through natural or anthropogenic pathways remain unclear. In this study, we analyzed the fecal samples of Adélie penguins and South polar skuas by using high-throughput sequencing and microfluidic quantitative PCR to detect potential pathogens and ARGs at their breeding colonies near Syowa Station in East Antarctica. These results revealed the presence of several potential pathogens in the fecal matter of both bird species. However, the HF183 marker, which indicates human fecal contamination, was absent in all samples, as well as seawater sampled near the breeding colonies. This suggests that the human fecal contamination was negligible in our study area. In addition to pathogens, we found a significant number of ARGs and metal resistance genes in the feces of both Adélie penguins and South polar skuas, with higher detection rates in skuas than in penguins. To better understand how these birds acquire and transmit these genes, we analyzed the migratory patterns of Adélie penguins and South polar skuas by geolocator tracking. We found that the skuas migrate to the tropical and subtropical regions of the Indian Ocean during the austral winter. On the other hand, Adélie penguins exhibited a more localized migration pattern, mainly staying within Antarctic waters. Because the Indian Ocean is considered one of the major reservoirs of ARGs, South polar skuas might be exposed to ARGs during their winter migration and transfer these genes to Antarctica.
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Affiliation(s)
- Takahiro Segawa
- Center for Life Science Research, University of Yamanashi, Shimokato, Chuo, Yamanashi 409-3898, Japan.
| | - Akinori Takahashi
- National Institute of Polar Research, Tachikawa, Tokyo, Japan; Department of Polar Science, The Graduate University for Advanced Studies, Tachikawa, Tokyo, Japan
| | - Nobuo Kokubun
- National Institute of Polar Research, Tachikawa, Tokyo, Japan; Department of Polar Science, The Graduate University for Advanced Studies, Tachikawa, Tokyo, Japan
| | - Satoshi Ishii
- Department of Soil, Water and Climate, University of Minnesota, St. Paul, MN, USA; BioTechnology Institute, University of Minnesota, St. Paul, MN, USA
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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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