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总结
多家媒体援引美国疾控中心（CDC）最新数据称，美国本季流感病例在假期出行与聚会带动下快速上升，已出现约1900例相关死亡。报道指出，变异的甲型流感H3N2毒株传播更快，可能造成更广泛且更重的病情风险，专家呼吁公众关注早期症状并及时就医与接种疫苗。该趋势可能加重冬季医疗系统压力，并对公共卫生防控提出更高要求。
正文
US faces worst winters, mutated H3N2 flu strain spreading fast: Early symptoms to know Times of India This 'super flu' could cause widespread serious illness, experts say Northeastern Global News Flu cases on the rise amid holiday travel, gatherings, latest CDC data shows ABC News US witnesses 1900 flu deaths so far this season, reveals CDC data as cases surge across the country Times of India Deakin University Chair Prof Catherine Bennett warns about a new strain of influenza A and increased activity. facebook.com
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