The actual time between infection and when you get sick (called the "incubation period") ranges from 10 days - 7 years. The average incubation period is 3 - 7 weeks.

Symptoms may include:

• Anxiety, stress, and tension
• Drooling
• Convulsions
• Exaggerated sensation at the bite site
• Excitability
• Loss of feeling in an area of the body
• Loss of muscle function
• Low-grade fever (102 degrees F or lower)
• Muscle spasms
• Numbness and tingling
• Pain at the site of the bite
• Restlessness
• Swallowing difficulty (drinking causes spasms of the voicebox)

If an animal bites you, try to gather as much information about the animal as possible. Call your local animal control authorities to safely capture the animal. If rabies is suspected, the animal will be watched for signs of rabies.

A special test called immunofluorescence is used to look at the brain tissue after an animal is dead. This test can reveal whether or not the animal had rabies.

The same test can be used to check for rabies in humans, using a piece of skin from the neck. Doctors may also look for the rabies virus in your saliva or spinal fluid, although these tests are not as sensitive and may need to be repeated.

Images

Central nervous system

Rabies

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Review Date: 02/10/2011
Reviewed By: David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)