严重性接触网络和全球疫情中的麻疹流行病学,2022年
Akira Endo1,2,3, Hiroaki Murayama4, Sam Abbott1,2
1Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK.
概括
2022年疫在与男性发生性关系的男性 (MSM) 中迅速蔓延,原因是少数人有多个伴侣. 这种网络结构挑战了制措施,强调了有针对性的预防策略的必要性.
科学领域:
- 流行病学
- 数学模型
- 公共卫生
背景情况:
- 在非流行地区的2022年水疫情表现出明显的流行病学特征,特别是在与男性发生性关系的男性 (MSM) 社区中流行.
- 之前的水疫情没有显示出2022年观察到的同样的增长模式或人口占主导地位.
研究的目的:
- 在MSM群体中持续增长的流行病学驱动因素.
- 确定性接触模式是否可以解释观察到的疫情动态.
主要方法:
- 使用经验性合作伙伴数据校准的传输模型.
- 分析了性伴侣分布对疾病传播的影响.
主要成果:
- 一个重尾性伴侣分布, 少数个体有不成比例的合作伙伴数量, 有效地解释了MSM中持续的水增长.
- 在MSM的性网络中,的基本繁殖数 (R0) 很可能大于1,这表明传播的可能性很高,而且制的挑战很大.
结论:
- 在MSM中独特的性网络结构是2022年疫情流行的一个关键因素.
- 有效制需要有针对性的预防,支持和早期检测策略,
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