新的流感菌株在英国、日本和北美传播,正在造成严重疾病,特别是在老年人中,但2025-26年疫苗依然有效。 A new flu strain spreading in the UK, Japan, and North America is causing severe illness, especially in older adults, but the 2025–26 vaccine remains effective.

一种新的流感变体H3N2亚克拉底K正在英国、日本和北美蔓延,联合王国的流感季节很早,很严重。 A new flu variant, H3N2 subclade K, is spreading in the UK, Japan, and North America, with the UK experiencing an early and severe flu season. 基因突变的菌株可能部分逃避先前的免疫, 并且与更严重的疾病有关, 特别是在老年人中。 Not included in this year’s vaccine, the genetically distinct strain may partially evade prior immunity and is linked to more severe illness, especially in older adults. 尽管有这些关切,早期数据显示,2025至26年的流感疫苗仍然有效——儿童为70%至75%,成年人为30%至40%——在典型范围内。 Despite these concerns, early data shows the 2025–26 flu vaccine remains effective—70% to 75% in children and 30% to 40% in adults—within typical ranges. 卫生官员继续敦促接种疫苗,作为防止严重后果的最佳保护措施。 Health officials continue to urge vaccination as the best protection against serious outcomes.