欧洲疾控中心：2024年3月流感病毒特征欧洲综述报告（英文版）

Genetic and antigenic characterization data generated at the Worldwide Influenza Centre for viruses with collection dates after 31 August 2023 until 31 January 2024 informed the WHO influenza vaccine composition meeting (VCM) in February 2024 when recommendations were made for the Northern hemisphere (NH) 2024‑2025 influenza season. At the February 2024 VCM it was recommended to change the A(H3N2) vaccine components for the 2024‑2025 NH season. Previously, at the September 2023 VCM, which foc