Asthma affects 3 to 5 percent of adults and 7 to 10 percent of children in the United States. Severe asthma attacks cause approximately 5,000 deaths per year.
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Asthma
Asthma affects 3 to 5 percent of adults and 7 to 10 percent of children in the United States. Severe asthma attacks cause approximately 5,000 deaths per year.