之前接种疫苗的人群中麻疹血清阳性:系统性审查和元分析
Mohammed Mustafa1, Alex S Reznik2, Juan Uribe1
1Department of Internal Medicine, University of Miami, Miami, FL, USA.
EClinicalMedicine
|December 8, 2025
概括
麻疹疫苗的血清阳性在接种疫苗后的十年内仍然很高,但随着时间的推移逐渐减弱. 麻疹抗体的这种下降可能表明免疫力下降,需要进一步研究感染率.
科学领域:
- 免疫学 免疫学 免疫学
- 流行病学 流行病学
- 疫苗学 疫苗学 疫苗学
背景情况:
- 麻疹疫情的全球复苏凸显了需要了解疫苗诱导的免疫持续时间.
- 接种麻疹疫苗后的血清阳性对于评估长期保护至关重要.
研究的目的:
- 为了测量接种疫苗的个体中麻疹血清阳性患病率.
- 评估疫苗接种以来麻疹抗体水平随时间变化的情况.
主要方法:
- 1980年至2025年研究的系统审查和元分析.
- 包括临床试验,横截面研究,队列研究和病例系列 (≥10名参与者).
- 超回归以分析与疫苗接种以来的时间相对的血清阳性趋势.
主要成果:
- 纳入了18项涉及23236名参与者的研究,显示总体血清阳性为87.8%.
- 随着疫苗接种后的时间,血清阳性下降,每年下降0.48%.
- 多剂量疫苗接种者的血清阳性 (88.8%) 比单剂量接种者的有限数据 (84.3%) 高.
结论:
- 在接种疫苗后长达10年的时间内观察到高麻疹血清阳性.
- 抗体水平的下降表明,随着时间的推移,幽默免疫力可能会下降.
- 需要进一步的研究,以将血清阳性与实际麻疹感染率相关联.
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