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    James M. Steckelberg, M.D.

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Question

Acute bronchitis: Is it contagious?

Is acute bronchitis contagious?

Answer

from James M. Steckelberg, M.D.

In otherwise healthy people, most cases of acute bronchitis are caused by viral infections — which can spread from person to person through direct and indirect contact. To reduce the risk of "catching" bronchitis, wash your hands often or use hand sanitizers regularly. It's also helpful to get an annual flu vaccination. Many cases of acute bronchitis result from influenza.

Sometimes people who have chronic bronchitis or asthma also develop acute bronchitis. When acute bronchitis develops as a complication of a chronic disease, it's less likely to be contagious.

Next question
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References
  1. Walsh EE. Acute bronchitis. In: Mandell GL, et al. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa.: Churchill Livingstone Elsevier; 2010. http://www.mdconsult.com/book/player/linkTo?type=bookPage&isbn=978-0-443-06839-3&eid=4-u1.0-B978-0-443-06839-3..00061-8. Accessed Aug. 24, 2010.
  2. Shoemaker DM, et al. Infectious diseases. In: Rakel RE. Textbook of Family Medicine. 7th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/216096560-2/0/1481/218.html?tocnode=53392697&fromURL=218.html#4-u1.0-B978-1-4160-2467-5..50024-5_911. Accessed Aug. 24, 2010.
  3. Moffa DA Jr., et al. Bronchitis, pneumonia, and pleural empyema. In: Tintinalli JE, et al. Tintinalli's Emergency Medicine: A Comprehensive Study Guide. 6th ed. New York, N.Y.: McGraw-Hill Medical; 2004. http://www.accessmedicine.com/content.aspx?aID=591464. Accessed Aug. 24, 2010.
  4. File TM Jr. Acute bronchitis. http://www.uptodate.com/home/index.html. Accessed Aug. 24, 2010.
AN01441 Oct. 7, 2010

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