Lyme disease is an infectious disease caused the bacterium Borrelia burgdorferi. It is transmitted via the bite of an infected tick.
Early symptoms may include fever, headache, fatigue, and a characteristic skin rash called erythema migrans.
Most cases of Lyme disease can be treated successfully with a few weeks of doxycycline, amoxicillin, or cefuroxime.
Left untreated, later symptoms may involve many parts of the body, including the brain, nerves, eyes, joints, and heart. Many disabling symptoms can occur, including permanent impairment of motor or sensory function of the lower extremities in extreme cases.