Evolution and Antigenic Drift of Influenza A (H7N9) Viruses, China, 2017-2019.

ABSTRACT: After a sharp decrease of influenza A(H7N9) virus in China in 2018, highly pathogenic H7N9 viruses re-emerged in 2019. These H7N9 variants exhibited a new predominant subclade and had been cocirculating at a low level in eastern and northeastern China. Several immune escape mutations and antigenic drift were observed in H7N9 variants.

SUBMITTER: Zhang J 

PROVIDER: S-EPMC7392412 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature