Shaking chills (rigors)

Shaking chills (rigors) are the body's reaction to a severe infection or the release of organisms, such as viruses or bacteria, into the bloodstream. These chills often occur with a high fever and sometimes make teeth chatter or, when severe, can cause uncontrollable shaking that can make a bed vibrate.

Last Updated: April 21, 2009

Author: Jan Nissl, RN, BS

Medical Review: William M. Green, MD - Emergency Medicine & Andrew Swan, MD, CCFP, FCFP - Family Medicine

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