Follow-up Study of Long-time Positive RT-PCR in Stool Specimens From Asymptomatic Children Infected With SARS-CoV-2

In the current study, we report on 4 children with confirmed SARS-CoV-2 infection, of which 3 of them were asymptomatic. These patients had both pharyngeal swabs and anal swabs testing during hospital or after discharge. All the 4 children showed long-time positive viral RNA in the stool specimens after pharyngeal swabs turned negative during the follow-up stage, especially in the asymptomatic children. The positive RNA in stool specimens of asymptomatic children last for more than 54 days after admission or 30 days after discharge.