Lyme disease is an infectious disease caused by the bacterium Borrelia burgdorferi. B. burgdorferi is transmitted to humans by a bite from an infected black-legged or deer tick. The tick becomes infected after feeding on infected deer, birds, or mice.

A flat, circular rash that looks like a red oval or bull’s-eye anywhere on your body


Joint pain and swelling

Muscle aches



Swollen lymph nodes

Sleep disturbances

Difficulty concentrating