Mouse allergens in urban elementary schools and homes of children with asthma.

Background: The association between allergens in schools and childhood asthma has not been well studied, particularly in the United States.

Objective: To investigate allergen exposure in schools compared with homes with a specific focus on children with asthma.

Methods: Dust samples were collected from 46 rooms in 4 urban elementary schools (northeastern United States) and from 38 student bedrooms.