Volume 28, Number 7—July 2022
Dispatch
Genetically Diverse Highly Pathogenic Avian Influenza A(H5N1/H5N8) Viruses among Wild Waterfowl and Domestic Poultry, Japan, 2021
Kosuke Okuya, Junki Mine, Kaori Tokorozaki, Isshu Kojima, Mana Esaki, Kohtaro Miyazawa, Ryota Tsunekuni, Saki Sakuma, Asuka Kumagai, Yoshihiro Takadate, Yuto Kikutani, Tsutomu Matsui, Yuko Uchida, and Makoto Ozawa
Table
Collection date, GISAID accession numbers, closest genetic relatives, and percentage genetic identity compared with other viruses among highly pathogenic avian influenza A(H5N1/H5N8) viruses detected in the Izumi Plain, Japan, 2021*
| Isolated virus | Collection date | Gene | Accession no. | Closest relative† | % Identity |
|---|---|---|---|---|---|
| A/environment/Kagoshima/ KU-ngrB4/2021 (mixed) |
2021 Nov 8 |
HA |
EPI1933367 |
A/environment sample/China/TZ001/2021 (H5N8) |
99.47 |
| A/chicken/Kagoshima/ 21A6T/2021 (H5N1) |
2021 Nov 13 | PB2 | EPI1940236 | A/duck/Bangladesh/37630/2019 (H10N4) | 97.72 |
| PB1 | EPI1940237 | A/layer hen/Slovakia/A-chicken-Slovakia-Pah_14–2020 /2020 (H5N8) | 98.20 | ||
| PA | EPI1940238 | A/chicken/Nigeria/VRD21–98_21VIR2288–6/2021 (H5N1) | 98.05 | ||
| HA | EPI1933663 | A/chicken/Nigeria/VRD21–43_21VIR2288–4/2021 (H5N8) | 98.71 | ||
| NP | EPI1940239 | A/teal/Egypt/MB-D-487OP/2016 (H7N3) | 98.20 | ||
| NA | EPI1940240 | A/chicken/Nigeria/VRD21–109_21VIR2370–425/2021 (H5N1) | 97.83 | ||
| M | EPI1940241 | A/Cygnus columbianus/Hubei/56/2020 (H5N8) | 99.29 | ||
| NSP |
EPI1940242 |
A/environment/Bangladesh/42635/2020 (H10N7) |
99.28 |
||
| A/chicken/Kagoshima/ B3T/2021 (H5N8) |
2021 Nov 15 | PB2 | EPI1933684 | A/environment sample/China/TZ001/2021 (H5N8) | 99.61 |
| PB1 | EPI1933685 | A/environment sample/China/TZ001/2021 (H5N8) | 99.30 | ||
| PA | EPI1933683 | A/Cygnus columbianus/Hubei/116/2020 (H5N8) | 99.40 | ||
| HA | EPI1933687 | A/environment sample/China/TZ001/2021 (H5N8) | 99.53 | ||
| NP | EPI1933680 | A/environment sample/China/TZ001/2021 (H5N8) | 99.67 | ||
| NA | EPI1933686 | A/Cygnus columbianus/Hubei/51/2020 (H5N8) | 99.15 | ||
| M | EPI1933682 | A/Cygnus columbianus/Hubei/56/2020 (H5N8) | 99.59 | ||
| NSP |
EPI1933681 |
A/environment sample/China/TZ001/2021 (H5N8) |
99.64 |
||
| A/hooded crane/Kagoshima/ KU-5T/2021 (H5N8) |
2021 Nov 19 | PB2 | EPI1933368 | A/environment sample/China/TZ001/2021 (H5N8) | 99.56 |
| PB1 | EPI1933369 | A/environment sample/China/TZ001/2021 (H5N8) | 99.30 | ||
| PA | EPI1933370 | A/Cygnus columbianus/Hubei/116/2020 (H5N8) | 99.49 | ||
| HA | EPI1933371 | A/environment sample/China/TZ001/2021 (H5N8) | 99.47 | ||
| NP | EPI1933372 | A/environment sample/China/TZ001/2021 (H5N8) | 99.67 | ||
| NA | EPI1933373 | A/Cygnus columbianus/Hubei/51/2020 (H5N8) | 99.09 | ||
| M | EPI1933374 | A/Cygnus columbianus/Hubei/56/2020 (H5N8) | 99.39 | ||
| NSP | EPI1933375 | A/environment sample/China/TZ001/2021 (H5N8) | 99.76 |
*GISAID, https://www.gisaid.org. HA, hemagglutinin; M, matrix; NA, neuraminidase; NP, nucleoprotein; NSP, nonstructural protein; PA, polymerase; PB1, polymerase basic 1; PB2, polymerase basic 2. †Representative viruses with the highest nucleotide identity retrieved from the NCBI GenBank (https://www.ncbi.nlm.nih.gov/genbank) database on December 3, 2021.
Page created: May 10, 2022
Page updated: June 18, 2022
Page reviewed: June 18, 2022
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.