基于人口的SARS-CoV-2传播血清调查 2021-2022年,美国马萨诸塞州,美国
Estee Y Cramer1, Augustine O Dada2, Shauna Onofrey3
1Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA; Infectious Diseases Epidemiology and Analytics Unit, Department of Global Health, Institut Pasteur, Université Paris Cité, 75015 Paris, France.
Vaccine
|November 19, 2025
概括
马萨诸塞州的SARS-CoV-2抗体水平随着时间的推移而增加,疫苗接种状态与血清标志物积极相关. 在感染或疫苗保护方面没有发现显著的人口差异,这表明在减轻COVID-19影响方面取得了广泛的成功.
科学领域:
- 免疫学 免疫学 免疫学
- 流行病学 流行病学
- 公共卫生 公共卫生
背景情况:
- 在2021-2022年期间,SARS-CoV-2在马萨诸塞州造成了重大疾病和死亡.
- 官方数据低估了真正的感染负担,缺少无症状病例和家庭测试结果.
研究的目的:
- 在马萨诸塞州居民中描述SARS-CoV-2暴露.
- 确定与流行病高峰期暴露相关的人口和行为因素.
主要方法:
- 进行了五次全州血清调查 (2021年6月至2022年9月),并进行过量采样.
- 收集了PCR的鼻子拭子和干燥的血液斑点用于IgG抗体测试 (尖峰,核囊).
- 测量了对spike-RBD的中和抗体.
主要成果:
- 在调查中,尖端抗体阳性范围从83.1%到96.4%.
- 中和抗体水平随着时间的推移而增加,从20.5%增加到73.5%.
- 疫苗接种与较高的血清标志物阳性相关;没有发现与血清状况有显著的人口相关.
结论:
- 抗体水平随着时间的推移而上升,在保护方面没有社会人口学差异.
- 过量采样和权重调整以考虑不同响应率.
- 调查结果表明,在人口统计学和成功的州级流行病响应方面提供了公平的保护.
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