Lyme disease is caused by four main species of bacteria. Borrelia burgdorferi and Borrelia mayonii cause Lyme disease in the United States, while Borrelia afzelii and Borrelia garinii are the leading causes in Europe and Asia. The most common tick-borne illness in these regions, Lyme disease is transmitted by the bite of an infected black-legged tick, normally known as a deer tick.
A small, red bump, like the bump of a mosquito bite, often appears at the site of a tick bite removal and resolves over a few days. This normal
occurrence doesn't indicate Lyme disease.Rash, from 3 to 30 days after an infected tick bite, an expanding red area might appear that sometimes clears in the center, forming a bull's-eye pattern.Fever, chills, fatigue, body aches, headache, neck stiffness and swollen lymph nodes can accompany the rash.