Watch Clip

What to know about a surge of walking pneumonia in children
5m 38s
A rise in cases of a contagious lung infection across the United States is causing alarm, especially for parents of young children. Walking pneumonia usually sickens school-aged children and teens, but this year, toddlers are being hit the hardest. Ali Rogin speaks with Dr. Donald Dumford, infectious disease specialist at Cleveland Clinic, to learn more.