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总结
美国媒体援引CDC《流感监测周报》称，2025—2026流感季在1月初仍处高位，门急诊流感样病例、住院等指标较往年更严峻，但截至1月3日的最新周数据显示病例开始回落。报道提醒冬季人群聚集与呼吸道传播推动扩散，且随着新变异株传播，部分患者的症状表现可能出现变化。专家建议尽快接种流感疫苗，高风险人群（幼儿、老人、孕妇及慢病患者）发病应尽早就医并在48小时内考虑抗病毒治疗，同时加强洗手、通风、戴口罩与居家隔离以降低传播与重症风险。
正文
Cases Of This Highly Contagious Winter Virus Are 'Worse Than Previous Seasons.' Here's What You Need to Know. HuffPost Weekly US Influenza Surveillance Report: Key Updates for Week 53, ending January 3, 2026 | FluView Centers for Disease Control and Prevention | CDC (.gov) Is relief in sight? Flu season still brutal but cases are declining. USA Today Wondering if you should get a flu shot? Here's what science says CNN Some flu symptoms are changing as a new variant spreads rapidly. What to expect NBC 5 Chicago
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