SARS-CoV-2 RNA more readily detected in induced sputum than in throat swabs of convalescent COVID-19 patients
Huanqin Han
Qingfeng Luo
Fan Mo
Lieming Long
Weiqiang Zheng
Published:March 12, 2020DOI:https://doi.org/10.1016/S1473-3099(20)30174-2
In China, the most common method for diagnosing coronavirus disease 2019 (COVID-19) is the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA in throat swabs. This technique has a rate of false-negative results that might enable convalescent COVID-19 patients to meet the criteria1 for discharge from hospital and release from quarantine, resulting in the spread of disease.