5岁以下儿童的SARS-CoV-2血清流行-A区域血清流行病学研究
Felicia Trofin1, Cătălina Luncă1,2, Diana Păduraru3
1Department of Preventive Medicine and Interdisciplinarity-Microbiology, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania.
Medicina (Kaunas, Lithuania)
|March 28, 2024
概括
超过一半的5岁以下儿童有SARS-CoV-2抗体,老年儿童的抗体率更高. 这表明,在年轻人群体中,感染和潜在免疫力广泛存在.
科学领域:
- 儿童传染病 儿童传染病
- 免疫学 免疫学 免疫学
- 流行病学 流行病学
背景情况:
- 父母对孩子们的COVID-19疫苗接种犹不决.
- 研究通过母乳养从接种疫苗或感染的母亲传递的被动免疫.
- 评估幼儿中SARS-CoV-2感染的流行情况.
研究的目的:
- 评估5岁以下儿童中SARS-CoV-2感染的血清流行率.
- 为了确定年龄和抗SARS-CoV-2免疫球蛋白G (IgG) 标位之间的相关性.
- 探索影响儿童群体抗体水平的因素.
主要方法:
- 分析了来自743名住院儿童 (5岁以下) 的血清样本.
- 使用标准化试验量化抗SARS-CoV-2 IgG抗体标位.
- 从2022年8月到2023年9月收集的数据.
主要成果:
- 52.76%的儿童表现出可检测的抗SARS-CoV-2 IgG抗体.
- 血清患病率随着年龄的增长而显著增加,从43.04% (0-12个月) 增加到68.55% (48-59个月).
- 在IgG标位和儿童年龄之间观察到正相关性;性别和诊断没有显著影响标位.
结论:
- 很大一部分幼儿拥有SARS-CoV-2的IgG抗体.
- 在5岁以下的儿童中,抗体水平和患病率随年龄增加而增加.
- 这些发现有助于了解儿科SARS-CoV-2暴露和潜在免疫力.
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