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总结
美国疾控中心（CDC）最新监测显示，本季流感活动在全美持续攀升，估计已累计至少1100万例感染。媒体称，假期期间门急诊就诊与住院病例明显上升，一些地区住院人数在一周内几乎翻倍，流行强度已接近或可比去年冬季的严峻疫情。相关报道同时关注居家流感检测的准确性及其在早期发现中的作用。卫生部门提醒高风险人群及时接种疫苗、出现症状尽早检测并按医嘱就医，以降低传播并缓解医疗系统压力。
正文
Flu activity continues to climb across the US with at least 11 million cases: CDC ABC News Flu season surged in the US over the holiday and already rivals last winter's harsh epidemic AP News Flu Is Surging in the US. How Accurate Are At-Home Flu Tests? TODAY.com Flu is surging nationwide. Hospitalizations nearly doubled in a single week. NBC News Why the flu season is so bad and how you can protect yourself PBS
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