The number of COVID-19 cases in children increased fourfold over the past month, likely due to kids returning to school, children under 11 not being eligible for vaccination and low vaccinations rates in many areas. Even though children remain a fraction of the cases and hospitalizations, how serious is the risk as they head back to school? NBC senior medical correspondent Dr. John Torres has this week’s Sunday Focus. » Subscribe to TODAY: http://on.today.com/SubscribeToTODAY » Watch the latest from TODAY: http://bit.ly/LatestTODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: http://on.today.com/ReadTODAY Find TODAY on Facebook: http://on.today.com/LikeTODAY Follow TODAY on Twitter: http://on.today.com/FollowTODAY Follow TODAY on Instagram: http://on.today.com/InstaTODAY