Mice May Be Worse Asthma Carriers Than Cockroaches

A great article from Indoor Environment Connections

People often associate high asthma rates in the inner cities with the prevalence of cockroaches in those dwellings. But a study published in the October issue of the Journal of Allergy and Clinical Immunology indicates that mice may be more of a factor than previously thought.

The study aimed to identify relevant allergens in Baltimore. More than 140 children (5-17 years old) with asthma underwent skin prick tests at baseline and had clinical data collected at baseline and 3, 6, 9, and 12 months. Home settled dust samples were collected at the same time points for quantification of indoor allergens. Participants were grouped based on their sensitization and exposure status to each allergen.

About 40 percent of each group was exposed to either cockroach allergens or mouse allergens. But the group with high mouse exposure “was associated with acute care visits, decreased FEV1/forced vital capacity percentage values, fraction of exhaled nitric oxide levels, and bronchodilator reversibility,” the researchers found.

Read the full article here

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