Enlarge this image A child watches as a nurse administers a shot of COVID-19 vaccine during a pop-up vaccination event at Lynn Family Stadium on April 26, 2021 in Louisville, Kentucky. Jon Cherry/Getty Images Jon Cherry/Getty Images Coronavirus cases among children are rising at a time when the highly infectious delta variant is advancing across the United States at a rapid clip. New state-level data analyzed by The American Academy of Pediatrics and the Children's Hospital Association shows that children accounted for roughly 15% of all newly reported COVID-19 infections across the nation for the week ending on August 5. Nearly 94,000 child cases of coronavirus were recorded during that period, a 31% increase over the roughly 72,000 cases reported the week prior. In the week before that, there were 39,000 new child cases. The AAP and CHA said that new coronavirus cases in children have been increasing since July after a period of decline in the early summer.