Fig. 2From: Duration of SARS-CoV-2 RNA positivity from various specimens and clinical characteristics in patients with COVID-19: a systematic review and meta-analysisThe funnel plots of the duration of SARS-CoV-2 RNA positivity in various samples. The funnel plots of the duration of SARS-CoV-2 RNA positivity in the upper respiratory tract samples (a), the sputum (b), the blood (c), and the stool (d) were shownBack to article page