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Definition

By Mayo Clinic staff

Lyme disease is a tick-borne illness that causes signs and symptoms ranging from rash, fever, chills and body aches to joint swelling, weakness and temporary paralysis. Lyme disease is caused by the bacterium Borrelia burgdorferi. Deer ticks, which feed on the blood of animals and humans, can harbor the disease and spread it when feeding.

You're more likely to get Lyme disease if you live or spend time in the grassy and heavily wooded areas where ticks carrying the disease breed. It's important to take common-sense precautions in areas where Lyme disease is prevalent. If treated with appropriate antibiotics in the early stages of the disease, you'll most likely recover completely. However, some people have recurring or lingering symptoms long after the infection has cleared.

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May 2, 2008

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