The air we breathe is filled with pollen, pollutants, and dust. Most children and adults are unaffected by these intruders. For a large number of children, however, these simple contaminants can make life miserable.
One of the surprising facts about asthma is that it is such a common disease. More than 23 million Americans have the condition and more than one-quarter of them are children younger than 18 years.
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