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What is Asthma?

Asthma is a long-lasting disease. It affects the airways that carry air in and out of the lungs. The airways can react to such things as dust, pollen, chemicals, or bacteria. Some symptoms of asthma are wheezing, coughing, chest tightness, and trouble breathing. Most people with asthma can control their symptoms with medicine. They can still do their daily activities.

About 10-15% of people with asthma have severe asthma. There are different types of severe asthma. It can start in childhood or later in life. Medicines for asthma that are available right now often don’t work well for people with severe asthma. This disease can make their lives very difficult.


Examples of asthma symptoms: Difficulty breathing, coughing, wheezing, chest tightness.
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What is Severe Asthma?
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