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COPYRIGHT 2003 American Academy of Family Physicians
What is acute bronchitis?
Acute bronchitis is an infection of the bronchial tree. The bronchial (say: "brawn-kee-ull") tree is made up of the tubes that carry air into your lungs. When these tubes get infected, they swell up, and mucus (thick fluid) forms. This makes it hard for you to breathe. You might cough up mucus, and you may wheeze (make a whistling sound when you breathe).
What causes acute bronchitis?
Acute bronchitis is almost always caused by a virus that attacks the lining of the bronchial tree and causes...
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