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总结
多家美媒关注美国多地出现麻疹聚集性病例与传播风险，指出疫苗接种接受度分化、部分社区免疫缺口扩大。报道讨论美国自2000年获得“消除麻疹”认定后，若持续暴发并出现持续本土传播，可能面临地位受质疑的风险。专家提醒麻疹并非“温和疾病”，可致肺炎、脑炎等严重并发症，婴幼儿与未接种者最易受害，并给出暴露后联系医疗机构评估、必要时隔离观察与补种疫苗等建议，呼吁社会共同承担预防责任。
正文
Has the U.S. Lost Measles Elimination Status? The New York Times Measles vaccine acceptance is mixed amid outbreaks across the US: Experts ABC News Protecting infants and children from measles South Carolina Public Radio What to do if you've been exposed to measles CNN Opinion: Measles is not harmless; prevention is shared responsibility The Asheville Citizen Times
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