Free
E-newsletter
Subscribe to Housecall
Our weekly general interest
e-newsletter keeps you up to date
on a wide variety of health topics.
close window
Mayo Clinic Housecall
Stay up to date on the latest health information.
What you get
- Free weekly e-newsletter
- Mayo Clinic expertise
- Recipes, tools and other helpful information
- We do not share your e-mail address
Definition
By Mayo Clinic staff
Pneumonia is an inflammation of the lungs caused by infection. Bacteria, viruses, fungi or parasites can cause pneumonia. Pneumonia is a particular concern if you're older than 65 or have a chronic illness or weak immune system. It can also occur in young, healthy people.
Pneumonia can range in seriousness from mild to life-threatening. Pneumonia often is a complication of another condition, such as the flu. Antibiotics can treat most common forms of bacterial pneumonias, but antibiotic-resistant strains are a growing problem. The best approach is to try to prevent infection.
References
- Pneumonia. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/sec05/ch052/ch052a.html. Accessed April 8, 2011.
- Pneumonia. American Lung Association. http://www.lungusa.org/lung-disease/pneumonia/. Accessed March 17, 2011.
- Durrington H, et al. Recent changes in the management of community-acquired pneumonia in adults. British Medical Journal. 2008;336:1429.
- Menendez R, et al. Treatment failure in community-acquired pneumonia. Chest. 2007;132:1348.
- Singh S, et al. Long-term use of inhaled corticosteroids and the risk of pneumonia in chronic obstructive pulmonary disease: A meta-analysis. Archives of Internal Medicine. 2009;169:219.
- Chong C, et al. Pneumonia in the elderly: A review of the epidemiology, pathogenesis, microbiology and clinical features. Southern Medical Journal. 2008;101:1141.
- Chong C, et al. Pneumonia in the elderly: A review of severity assessment, prognosis, mortality, prevention and treatment. Southern Medical Journal. 2008;101:1134.
- Pneumococcal disease in-short. Centers for Disease Control and Prevention. http://www.cdc.gov/vaccines/vpd-vac/pneumo/in-short-both.htm. Accessed March 23, 2011.
- File TM. Treatment of hospital-acquired, ventilator-associated, and healthcare-associated pneumonia in adults. http://www.uptodate.com/home/index.html. Accessed March 23, 2011.
- Mandell LA, et al. Pneumonia. In: Fauci AS, et al. Harrison's Online. 17th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/content.aspx?aid=2899132. Accessed April 5, 2011.
Find Mayo Clinic on