在"盟友欢迎行动"期间,麻疹病毒传播模式和公共卫生反应:描述性的流行病学研究
Nina B Masters1, Andrew S Beck2, Adria D Mathis2
1Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA; Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA, USA.
The Lancet. Public health
|July 29, 2023
概括
麻疹疫苗接种和隔离措施在"盟友欢迎行动"期间有效地限制了传播,防止了阿富汗撤离人员的广泛爆发. 这凸显了综合公共卫生干预措施在控制传染病方面的成功.
科学领域:
- 流行病学 流行病学
- 病毒学 病毒学
- 公共卫生 公共卫生
背景情况:
- 盟友欢迎行动 (OAW) 在美国重新安置了超过8万名阿富汗撤离人员.
- 在疏散人员中发现了麻疹病例,这促使航班暂停飞行和大规模疫苗接种工作.
- 在接种疫苗后,为了控制麻疹,实施了21天的隔离期.
研究的目的:
- 在OAW爆发期间评估麻疹病毒传播模式.
- 评估实施的控制措施的影响,包括疫苗接种和隔离.
- 了解流行病学和遗传数据在追踪传播中的作用.
主要方法:
- 在美国的阿富汗撤离人员中进行了麻疹疫情调查.
- 根据急性发烧性皮疹疾病,实验室确认或流行病学联系确定麻疹病例.
- 利用人口,临床,流行病学和全基因组测序数据进行传播分析.
- 使用传输模型来评估干预效应.
主要成果:
- 在美国六个地区报告了47例麻疹病例 (发病率:每1000例0.65例).
- 大多数病例 (70%) 是5岁以下的儿童,转向婴儿.
- 控制措施防止了广泛的社区传播,估计有5506例病例被避免.
结论:
- 公共卫生干预措施,包括疫苗接种和隔离,成功地限制了OAW行动中的麻疹传播.
- 综合流行病学和遗传数据对于准确识别消除环境中的传播途径至关重要.
- 没有观察到死亡或社区传播,这表明控制策略的有效性.
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