Why kids struggle with long COVID

When children contract COVID-19, they aren't as likely to get severely ill as adults. But long COVID can have a severe impact on kids, according to a new study in the journal Pediatrics. Dr. Ziyad al-Aly, chief of research and development at the V.A. St. Louis Health Care System, talks with The World's Carolyn Beeler about how and why kids' immune systems struggle with the condition.