Liu Y, Chen Y, Yang Z, Lin Y, Fu S, Chen J, Xu L,. Evolution and Antigenic Differentiation of Avian Influenza A(H7N9) Virus, China. Emerg Infect Dis. 2024 Apr 19;30(6)
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.
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