Medical Encyclopedia

Medical Encyclopedia

Thermometer temperature

Thermometer temperature

Fever is an important part of the body's defense against infection. Most bacteria and viruses that cause infections in humans thrive best at 98.6°F. Raising the body temperature a few degrees can help the body fight the infection. In addition, a fever activates the body's immune system to make more white blood cells, antibodies, and other infection-fighting agents.

Update Date: 2/27/2008

Updated by: Rachel A. Lewis, MD, FAAP, Columbia Pediatric Faculty Practice, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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