Why newborns need extra protection In older kids and adults, RSV usually looks like a bad cold. In newborns and young infants, it can cause bronchiolitis, swelling of tiny airways, leading to labored breathing, trouble feeding, and dehydration. Babies have small airways and limited reserves; even minor swelling can make breathing and feeding a struggle. The goal isn’t isolation; it’s stacking simple protections and recognizing early signs. For fast pediatric evaluation without the ...