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. 2020 Mar 13;26(4):502–505. doi: 10.1038/s41591-020-0817-4

Fig. 1. Chronology of major epidemiological events and molecular testing results of n = 10 independent pediatric patients confirmed with SARS-CoV-2 infection.

Fig. 1

a, Dates of exposure, illness onset and sampling and real-time RT–PCR results of nasopharyngeal swabs and rectal swabs. The total number of patients was n = 10 and real-time RT–PCR was assayed only once for one type of sample at one time point from one independent patient. Colors in the figure represent individual patients. b, Chronological changes in Ct values of Orf1ab and N genes using real-time RT–PCR after hospital admission. The Ct values of Orf1ab and N genes on real-time RT–PCR detected in rectal swabs obtained from n = 10 independent patients (i) and Ct values in nasopharyngeal swabs from n = 10 independent cases (ii). The Ct value is supposed to be inversely related to viral RNA copy numbers and a value of 40 means the virus is molecularly undetectable.