Nearly 100,000 children tested positive for the coronavirus in the last two weeks of July, a new report from the American Academy of Pediatrics finds. Just over 97,000 children tested positive for the coronavirus from July 16 to July 30, according to the association.

Out of almost 5 million reported COVID-19 cases in the U.S., CBS News’ Michael George reports that the group found that more than 338,000 were children.

Vanderbilt University’s Dr. Tina Hartert hopes increased testing of children will help determine what role they play in transmission, as school districts around the country return to some form of school. She is leading a government-funded study that saw DIY testing kits sent to some 2,000 families.

“The kits are shipped to the families, they are taught how to collect these samples, and then the samples are sent back by the families to a central repository,” she said.