Pediatric asthma estimates are for those under 18 years of age and represent the estimated number of people who had asthma in 2007 based on national rates (NHIS) applied to county population estimates (U.S. Census).

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Two-thirds of the pediatric deaths linked to H1N1 have occurred in children with underlying illnesses such as asthma and neurological disorders, such as cerebral palsy.

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