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Emerg Infect Dis
; 30(6): 1218-1222, 2024 Jun.
Article
in English
| MEDLINE
| ID: mdl-38640498
ABSTRACT
We characterized the evolution and molecular characteristics of avian influenza A(H7N9) viruses isolated in China during 2021-2023. We systematically analyzed the 10-year evolution of the hemagglutinin gene to determine the evolutionary branch. Our results showed recent antigenic drift, providing crucial clues for updating the H7N9 vaccine and disease prevention and control.