Asthma

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Overview

Asthma is a chronic disease of the lungs and airways that affects an estimated 14 million to 17 million people in the United States. Severe asthma is a serious health concern that can lead to respiratory failure and death. Asthma kills an estimated 5000 people a year in the United States and as many as 470,000 seek hospital treatment for asthma symptoms.




Despite its prevalence, experts differ in the definition of the disease. Clinical authorities typically favor a broad, com...Read the full article