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The role of children in transmission of SARS-CoV-2 and the scope of pediatric illness has been examined since the start of the pandemic (NEJM JW Gen Med Aug 15 2020 and Pediatrics 2020 Jul; 146:20201576; NEJM JW Gen Med Sep 1 2020 and Emerg Infect Dis 2020 Jul 16; 26: [e-pub]; and (NEJM JW Pediatr Adolesc Med May 2020 and MMWR Morb Mortal Wkly Rep 2020 Apr 6; [e-pub]). Studies have indicated that young children transmit the virus to a lesser extent than older children, and although symptoms in children mirror those of adults, disease is less severe. In a secondary analysis of a household contact study, researchers in Milwaukee and Salt Lake City followed a cohort of children and their household contacts, including the COVID-19 index case, f…