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总结
CNN报道称，尽管本季流感在美国多地呈现病例上升、医院和急诊压力加大的态势，科学证据仍支持大多数人接种流感疫苗。疫苗无法保证完全不感染，但可降低感染概率并显著减少重症、住院与并发症风险，尤其对老年人、儿童、孕妇及有基础病人群更关键。报道强调尽早接种更理想，但在流感季中后期接种仍可能带来保护；对既往严重过敏反应等特殊情况应咨询医生，同时配合洗手、戴口罩与生病居家等措施减轻传播。
正文
Wondering if you should get a flu shot? Here's what science says CNN Already Severe Flu Season Is Overwhelming Hospitals and ERs. Doctors Reveal Top Symptoms TODAY.com Michigan flu cases surge; some kids on ventilators, health officials say The Detroit News Mirroring national trend, Florida sees rise in "super flu" cases Axios Flu cases surge across US. See where cases are rising. USA Today
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