Tian M, et al. Environ Microbiol 2020.
We reported 20 cases of discharged COVID-19 patients whose RT-PCR test results showed "re-positive". After finding "re-positive ", these patients were admitted to hospital for the second time and were followed up until the end of May 2020. Methods: Record detailed treatment and follow-up process, and collect relevant data. The possible causes and potential clinical significance of this phenomenon are discussed. This article is protected by copyright. All rights reserved.