Bronchiolitis is the leading cause of hospitalization for children younger than 1 year of age and these hospitalized children have an increased risk for developing childhood asthma. It remains unclear, however, which children who have severe bronchiolitis (eg, an episode requiring hospitalization) will develop recurrent wheezing or asthma. Although many environmental and genetic factors may play a role in the pathway from bronchiolitis to asthma, this article focuses on the viruses that have been linked to bronchiolitis and how these viruses may predict or contribute to future wheezing and asthma. The article also discusses vitamin D as an emerging risk factor for respiratory infections and wheezing. (Source: Clinics in Laboratory Medicine)MedWorm Message: Get the very latest Swine Flu news via the MedWorm Swine Flu RSS news feed - updated hourly from thousands of authoritative health and news sources.
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