Lyme Disease

Lyme disease, discovered in 1977, is the most prevalent tick-borne infection in the U.S. Borrelia burgdorferi, the bacterium that causes Lyme disease, lives in infected mammals and in the midgut of ticks. When an infected tick bites an animal or a human, the bacteria are transmitted to the new host. Infection causes fever, malaise, fatigue, headache, muscle and joint aches, and a characteristic “bull’s-eye” rash that surrounds the site of infection.