H3N2流感菌株的传染性较强,正在迅速蔓延,引起人们对美国和欧洲2025年严重流感季节的担心。 A more contagious H3N2 flu strain is spreading rapidly, raising fears of a severe 2025 flu season in the U.S. and Europe.

一种变异的H3N2流感菌株,其传染性较高(R1.4),正在加剧美国和欧洲2025年严酷季节的担忧,尤其影响到儿童、老年人和弱势群体。 A mutated H3N2 flu strain with higher transmissibility (R≈1.4) is fueling concerns of a severe 2025 season in the U.S. and Europe, particularly affecting children, older adults, and vulnerable groups. 目前的疫苗提供部分保护,卫生当局建议接种疫苗和及早使用抗病毒剂,而一些国家,如日本,则采用临时关闭学校的办法来遏制传播。 The current vaccine offers partial protection, and health authorities recommend vaccination and early antiviral use, while some countries, like Japan, employ temporary school closures to curb transmission.