Croup is a condition that affects the lungs, voice box, and windpipe in young children. It most often occurs due to a group of viruses called human parainfluenza viruses (HPIVs). No vaccine can ...

Croup and respiratory syncytial virus (RSV) are related conditions. RSV is one of the common causes of croup in children. Respiratory syncytial virus (RSV) causes lung and respiratory tract infections ...

Croup is what happens when a child catches a virus which inflames his larynx or voicebox, causing spasms of coughing which sound like a dog or sea lion barking, a hoarse voice and sometimes difficulty ...