MedlinePlus Medical Encyclopedia: Thermometer temperature

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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: 3/11/2004

Updated by: A.D.A.M. Medical Illustration Team

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