While three Covid-19 vaccines are now available for adults in the U.S., none have been approved yet for kids under 16. CNN’s Chief Medical Correspondent Dr. Sanjay Gupta speaks with pediatrician and former acting director of the CDC, Dr. Richard Besser, about what this means for parents and their kids. Where do Covid-19 trials in children stand? What role do children play in herd immunity? And when will your child be able to get a vaccine?  To learn more about how CNN protects listener privacy, visit cnn.com/privacy