Lyme Disease

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Signs and Symptoms

Lyme disease may be asymptomatic or may produce symptoms that develop in three stages. The first stage causes flu-like symptoms (e.g., fever, headache, malaise, muscle pain) and the characteristic "bull's eye" rash, typically within 7 to 14 days of infection. These symptoms often resolve without treatment.

The rash begins as a red area at the site of the tick bite and gradually expands, often with central clearing, which produces the bull's eye. It can last from a fe...Read the full article