在伊利诺伊州的小学和中学对SARS-CoV-2传播的建模研究
Conghui Huang1, Rebecca Lee Smith2,3,4
1Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana Champaign, Urbana, IL, USA. chuang65@illinois.edu.
BMC public health
|November 18, 2024
概括
增加每周测试计划的参与可以减少学校的SARS-CoV-2传播. 然而,仅仅口罩授权的有效性不太清楚,需要进一步的成本效益研究.
科学领域:
- 流行病学 流行病学
- 公共卫生 公共卫生
- 传染病建模 传染病建模
背景情况:
- 在伊利诺伊州 (2021年春至2022年春),SARS-CoV-2大流行使学校需要采取保护措施,包括面具强制和每周测试.
- 了解传播动态和干预效果对于安全学校运营至关重要.
研究的目的:
- 估计SARS-CoV-2在小学和中学内外的传播情况.
- 评估口罩授权,测试比例和测试频率对传播的影响.
主要方法:
- 一个随机的隔间模型被开发出来,它是从一个易感-感染-恢复的框架中调整出来的.
- 该模型模拟了伊利诺伊州116个学区的传播,并使用2021年春季至2022年3月的监控数据进行校准.
主要成果:
- 外部传播率明显超过了学校内的传播率,与初中学生相比,中学学生和员工的外部传播率更高.
- 增加每周检测的参与与减少感染相关.
- 社区层面的口罩遵守率没有显示出在通用口罩政策下与感染率的显著关联.
结论:
- 虽然增加测试可以减少感染,但不断增加的测试量增加了成本.
- 为了有效制定政策,建议进一步研究测试量与病例减少和学习中断的成本效益.
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