Jun 6, 2014 7:13 AM by Lindsay MacLeod, KSBY News
Exposing kids to allergens before their first birthday could prevent them from developing allergies.
Allergens from rodents, cockroaches, and cats are linked to higher allergy and asthma rates in kids, but a new study from Johns Hopkins finds exposing children to such bacteria before their first birthday could have a protective effect.
Researchers followed more than 450 inner city newborns for three years who lived in homes with cockroach droppings and mouse and cat dander.
Infants had lower rates of wheezing by age three.
Researchers say early exposure may play a role in shaping kids' immune systems.
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