NP: nasopharyngeal; OP: oropharyngeal.
Figure legend: Laboratory confirmed COVID-19 cases (n=217) are grouped by disease severity: those with symptoms or clinical course described in the original publications as mild, moderate, common, or typical (n=173 adults) are referred to as “mild cases” (A. and B.), while those with severe disease or critically ill and/or admitted to the ICU (n=44 adults) are referred to as “severe cases” (C. and D.). Asymptomatic patients were excluded. The cumulative number of cases with respective positive (A. and C) or negative (B and D.) RT-PCR results on different sample types (a total of 1627 and 1150 samples from mild and severe cases respectively) on a respective day post symptoms onset are represented using a colour gradient. Sample types are as follows: NP swab (nasopharyngeal/midturbinate/nasal swab), OP swab (oropharyngeal/throat swab), NP+OP swab (both swabs collected in one tube or results published aggregated), sputum (induced/spontaneous sputum), stool, anal swab (anal/rectal swab), blood (serum, plasma, whole blood or not specified), urine. Sample collection by days post symptoms onset are shown as stated by the authors, and if unavailable extracted from timeline descriptions.
Table . COVID-19 aggregated RT-PCR results in different sample
types (n=2777) in patients (n=217) with mild or severe symptoms