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Evolution and Antigenic Differentiation of Avian Influenza A(H7N9) Virus, China

21 May 2024

Abstract excerpt

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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PMID: 38640498
DOI: 10.3201/eid3006.230530

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