BSL-3 2020/2/17 - 2021/9/15 127 111 80 63.1% IF=5.897 LDT 4 14 24 9 35 24 BSL-3 BSL-3 RG3 LDT Laboratory Developed Test BSL3 SARS-CoV2 CPE , Johns Hopkins University、 、 COVID-19 2019 SARS-CoV-2 COVID-19 Chapter3 15