If you have children, there's good reason to be scared of mice. Common house mice may be a major contributor to asthma among children living in urban areas, according to a federally funded study.
Asthma affects approximately 15 million Americans, including 5 million children. An estimated 7 percent of children nationally have the disease, though researchers say it's twice as common in cities.
In a study involving eight urban areas, Johns Hopkins University scientists discovered that 95 percent of tested homes had at least one room containing mouse allergen.