Alliance for Pandemic Preparedness

February 5, 2021

Nasopharyngeal SARS-CoV-2 viral loads in young children do not differ significantly from those in older children and adults

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A multicenter study of SARS-CoV-2 cases (n=5,544) confirmed by RT-PCR assay found no significant differences in viral concentration (as measured by Ct values) across different age groups. In particular, the children less than 5 years old did not display higher nasopharyngeal viral loads than older children or adults.

Madera et al. (Feb 4, 2021). Nasopharyngeal SARS-CoV-2 viral loads in young children do not differ significantly from those in older children and adults. Scientific Reports.  https://doi.org/10.1038/s41598-021-81934-w