Patients with COVID-19 Testing Positive for Nucleic Acids of SARS-CoV-2 in Re-examination After Discharge from Hospital: An Analysis of Three Cases/ 3例COVID-19出院后核酸复检阳性患者的检测分析

Detection of the nucleic acids (NAs) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the “gold standard” for diagnosis of coronavirus disease 2019 (COVID-19) Antibody detection in serum is an important auxiliary method We undertook retrospective analyses of the results of NA detection and antibody detection in the diagnosis, treatment and isolation of COVID-19 patients at the beginning of the disease as well as upon discharge from hospital We offered a preliminary discussion on the correlation between NA detection and antibody detection and the infectious factors of COVID-19 Our study can provide a reference for monitoring SARS -CoV-2 infection in the treatment and rehabilitation of patients with COVID-19