PhotoIf you’re someone who has struggled with asthma for most of your life, then you might remember what it was like having it as a child. Whether it was performing physical activities in gym class or participating in athletic sports, the condition was likely one that slowed you down if it wasn’t managed constantly.

However, a recent study suggests that certain allergens found in schools may make asthma symptoms even worse. Researchers from Boston’s Children’s Hospital and Harvard Medical School have found that air-borne allergens in schools, such as those that come from mice, may worsen asthma symptoms. They say that inner city children who are exposed to mouse allergens at school have worse overall medical outcomes connected with their asthma.

“In our study of inner-city school-aged children with asthma, exposure to higher levels of school mouse allergen was associated with a higher number of days with asthma symptoms and decreased lung function, independent of home environmental exposure,” the researchers said.

Worsened symptoms

The researchers analyzed the home and school environments of 284 students between the ages of 4 and 13 that were enrolled in inner-city schools in the northeastern United States. They found that schools with higher concentrations of mouse allergen yielded children with worse asthma symptoms and lower lung function.

While other allergens were found both at home and at school, the researchers say that negative health trends were most noticeable in children exposed to mouse allergens at school. They recommend that schools find ways to reduce the amount of these contaminants so that asthmatic children do not suffer as much from their condition.

“This [negative health trend] was seen in all children with asthma studied, regardless of whether they were sensitized to mouse allergen, and further underscores the public health relevance of school-associated allergen exposure as an important contributor to asthma morbidity in children,” they said.

“These findings suggest that exposure reduction strategies in the school setting may effectively and efficiently benefit all children with asthma. Future school-based environmental intervention studies may be warranted.”

The full study has been published in JAMA Pediatrics.

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