A member asked:

What are the top causes of bronchitis and pneumonia?

A doctor has provided 1 answer
Dr. Sue Ferranti answered

Specializes in Internal Medicine

Bacteria or viral: Both acute bronchitis and pneumonia are usually caused by either bacterial or viral infections. Some common bacterial causes include strep pneumoniae, staph aureus, b. Catarhalis as well as many others. Chronic bronchitis is a form of copd, usually due to smoking.

Answered 3/7/2014

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