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by Martin JJ


Bronchiolitis is caused by a virus. There are several different types of virus that may cause it. The viruses are easily spread from person to person like a common cold . It spreads most often through coughs or sneezes which release droplets of moisture into the air. Breathing in the air can cause the infection in a noninfected person.


There is no vaccine to prevent bronchiolitis. There are some medications that may lessen the risk of bronchiolitis by respiratory syncytial virus (RSV) . RSV is a virus which causes more than half of all cases of bronchiolitis. This preventative medication is usually given to high-risk babies. It is given monthly during high risk RSV season.
Proper handwashing habits can help to prevent the spread of illness. Make sure to wash your hands before touching your child. Also wash your hands after being in contact with an infected person.
Bronchiolitis can spread easily from one person to another. Children should be kept home until they are well. Teach your children to cover their mouth and nose with a tissue or upper sleeve when they cough or sneeze.


Family Doctor—American Academy of Family Physicians

Kids Health—Nemours Foundation



The Canadian Lung Association

Caring for Kids—The Canadian Paediatric Society



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8/10/2007 according to the following study, as cited by Corneli HM, Zorc JJ, Majahan P, et al. A multicenter, randomized, controlled trial of dexamethasone for bronchiolitis. N Engl J Med. 2007;357:331-339.

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