Hydration in bronchiolitis

The most likely reason for acute admission to hospital in the first year of life is viral bronchiolitis.

Why some babies get sicker than others with common viruses such as respiratory syncytial virus is unclear.

A number of risk factors increase the likelihood of admission to hospital, including being younger than two months of age, being male, having a history of preterm birth, having older siblings attending daycare, and having parents who smoke.