研究人员发现，他们治疗轻度COVID-19感染的患者中，有一半在症状消失后的8天内仍然携带冠状病毒。

Some COVID-19 patients still have coronavirus after symptoms disappear

https://www.sciencedaily.com/releases/2020/03/200327091234.htm

Journal Reference:

1. De Chang, Guoxin Mo, Xin Yuan, Yi Tao, Xiaohua Peng, Fusheng Wang, Lixin Xie, Lokesh Sharma, Charles S Dela Cruz, Enqiang Qin. Time Kinetics of Viral Clearance and Resolution of Symptoms in Novel Coronavirus Infection. American Journal of Respiratory and Critical Care Medicine, 2020; DOI: 10.1164/rccm.202003-0524LE