HEPA filter and floor environmental monitoring strategies for the detection of SARS-CoV-2 in five K-6 and K-8 schools.

HEPA filter and floor environmental monitoring strategies for the detection of SARS-CoV-2 in five K-6 and K-8 schools.用于五所K-6及K-8学段学校内新冠病毒（SARS-CoV-2）检测的高效微粒空气过滤器（HEPA filter）与地面环境监测策略