These people sometimes need treatment in a hospital. So it's important to watch the symptoms and call your doctor if they get worse.
It's very hard to keep from catching RSV, just like it's hard to keep from catching a cold. But you can lower the chances by practicing good health habits. Wash your hands often, and teach your child to do the same. See that your child gets all the vaccines your doctor recommends.
Medicines to prevent RSV may be given to babies and children who are more likely to have problems with the infection. Sometimes these medicines don't prevent RSV, but they may keep symptoms from getting serious.