Re-Invasion of H5N8 High Pathogenicity Avian Influenza Virus Clade 2.3.4.4b in Hokkaido, Japan, 2020
| Autor: | Hiroshi Kida, Yoshihiro Sakoda, Hirotaka Hayashi, Daiki Kobayashi, Kohei Ogasawara, Norikazu Isoda, Keisuke Saito, Zu-Jyun Wang, Yukiko Watanabe, Augustin T. Twabela, Enkhbold Bazarragchaa |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Genotype 030106 microbiology lcsh:QR1-502 Bird migration Zoology Animals Wild Biology medicine.disease_cause History 21st Century lcsh:Microbiology Virus 03 medical and health sciences Japan H5N8 Virology medicine Animals Influenza A Virus H5N8 Subtype highly pathogenic avian influenza Geography Medical Clade Phylogeny clade 2.3.4.4 Virulence Phylogenetic tree Communication Strain (biology) Outbreak Bird nest Influenza A virus subtype H5N1 Ducks 030104 developmental biology Infectious Diseases Influenza A virus Influenza in Birds |
| Zdroj: | Viruses Viruses, Vol 12, Iss 1439, p 1439 (2020) |
| ISSN: | 1999-4915 |
| DOI: | 10.3390/v12121439 |
| Popis: | Global dispersion of high pathogenicity avian influenza (HPAI), especially that caused by H5 clade 2.3.4.4, has threatened poultry industries and, potentially, human health. An HPAI virus, A/northern pintail/Hokkaido/M13/2020 (H5N8) (NP/Hok/20) belonging to clade 2.3.4.4b, was isolated from a fecal sample collected at a lake in Hokkaido, Japan where migratory birds rested, October 2020. In the phylogenetic trees of all eight gene segments, NP/Hok/20 fell into in the cluster of European isolates in 2020, but was distinct from the isolates in eastern Asia and Europe during the winter season of 2017–2018. The antigenic cartography indicates that the antigenicity of NP/Hok/20 was almost the same as that of previous isolates of H5 clade 2.3.4.4b, whereas the antigenic distances from NP/Hok/20 to the representative strains in clade 2.3.4.4e and to a strain in 2.3.4 were apparently distant. These data imply that HPAI virus clade 2.3.4.4b should have been delivered by bird migration despite the intercontinental distance, although it was not defined whether NP/Hok/20 was transported from Europe via Siberia where migratory birds nest in the summer season. Given the probability of perpetuation of transmission in the northern territory, periodic updates of intensive surveys on avian influenza at the global level are essential to prepare for future outbreaks of the HPAI virus. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |