标题: [其他] COVID-19 Possibly Arrived in the U.S. in Dec. 2019 [打印本页] 作者: jobtom878 时间: 2021-3-3 07:21 标题: COVID-19 Possibly Arrived in the U.S. in Dec. 2019
The SARS-CoV-2 virus, which causes COVID-19, may have arrived in the U.S. by December 2019, even before the first cases were reported in China, according to a new study published Monday in the journal Clinical Infectious Diseases.https://www.webmd.com/lung/news/ ... the-u-s-in-dec-2019
