ArticleEFSA journal. European Food Safety Authority2020
Avian influenza overview November 2019- February2020.
Article in EFSA journal. European Food Safety Authority, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Avian Influenza Viruses: Global Panzootic, Host Range Expansion and Emerging One-Health Threats.Veterinary sciences · 2026Review
- Construction and Immune Strategy Optimization of a Vaccine Strain for Influenza A (H5N8) Subtype.Viruses · 2025Article
- Prevalence and risk factors of Influenza Avian Virus in backyard pigeons, ducks, and chickens in Toba Tek Singh District, Pakistan.PloS one · 2025Article
- The Alarming Situation of Highly Pathogenic Avian Influenza Viruses in 2019-2023.Global medical genetics · 2024Review
- Highly Pathogenic Avian Influenza (HPAI) H5 Clade 2.3.4.4b Virus Infection in Birds and Mammals.Animals : an open access journal from MDPI · 2024Review
- Spatiotemporal genotype replacement of H5N8 avian influenza viruses contributed to H5N1 emergence in 2021/2022 panzootic.Journal of virology · 2024Article
- Using surveillance data for early warning modelling of highly pathogenic avian influenza in Europe reveals a seasonal shift in transmission, 2016-2022.Scientific reports · 2023Article
- Bidirectional Movement of Emerging H5N8 Avian Influenza Viruses Between Europe and Asia via Migratory Birds Since Early 2020.Molecular biology and evolution · 2023Article
- Avian influenza overview May - September 2021.EFSA journal. European Food Safety Authority · 2022Article
- Avian influenza overview February - May 2021.EFSA journal. European Food Safety Authority · 2021Article
- Evolutionary Dynamics of H5 Highly Pathogenic Avian Influenza Viruses (Clade 2.3.4.4B) Circulating in Bulgaria in 2019-2021.Viruses · 2021Article
- Molecular Characterization of Highly Pathogenic Avian Influenza Viruses H5N6 Detected in Denmark in 2018-2019.Viruses · 2021Article
- Avian Influenza in Wild Birds and Poultry: Dissemination Pathways, Monitoring Methods, and Virus Ecology.Pathogens (Basel, Switzerland) · 2021Review
- Avian influenza overview December 2020 - February 2021.EFSA journal. European Food Safety Authority · 2021Article
- Microbial aspects and potential markers for differentiation between bacterial and viral meningitis among adult patients.PloS one · 2021Article
- Avian influenza overview August - December 2020.EFSA journal. European Food Safety Authority · 2020Article
- Avian influenza overview May - August 2020.EFSA journal. European Food Safety Authority · 2020Article
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Between 16 November 2019 and 15 February 2020, 36 highly pathogenic avian influenza (HPAI) A(H5N8) virus outbreakswere reported in Europe in poultry (n=34), captive birds (n=1) and wild birds (n=2), in Poland, Hungary, Slovakia, Romania, Germany, Czechiaand Ukraine,one HPAI outbreakcaused by a simultaneous infection with A(H5N2) and A(H5N8) was reported in poultry in Bulgaria, andtwo low pathogenic avian influenza (LPAI) A(H5) virus outbreaks were reported in poultryin the United Kingdom and in Denmark. Genomic characterisation of the HPAI A(H5N8) viruses suggests that they are reassortants of HPAI A(H5N8) viruses from Africa and LPAI viruses from Eurasia. It is likely that this reassortment occurred in wild migratory birds in Asia during the summer and then spread to eastern Europe with the autumnmigration. This is the first time that wild bird migration from Africa to Eurasia has been implicated in the long-distance spread of HPAI viruses to the EU. Given the late incursion of HPAI A(H5N8) virus into the EU in this winter season (first outbreak reported on 30 December 2019), its overall restriction to eastern Europe, and the approaching spring migration, the risk of the virus spreadingfurther in the west via wild birds is decreasing for the coming months. Genetic analysis of the HPAI A(H5N2) and A(H5N8) viruses detected in the Bulgarian outbreak reveals that these virusesare both related to the 2018-19 Bulgarian HPAI A(H5N8) viruses and not to the HPAI A(H5N8) viruses currently circulating in Europe.An increasing number of HPAI A(H5N1), A(H5N2), A(H5N5) and A(H5N6) virus outbreaks in poultry in Asia were reported during the time period for this report compared with the previous reporting period. Single outbreaks of HPAI A(H5N8) virus were notified by Saudi Arabia and South Africa. Furthermore, in contrast to the last report, HPAI virus-positive wild birds were reported from Israel and one of the key migration areas in northern China.Two human cases due to A(H9N2) virus infection were reported during the reporting period.
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