The Lyme disease bacterium, Borrelia burgdorferi, is spread through the bite of infected ticks.The blacklegged tick (or deer tick, Ixodes scapularis) spreads the disease in the northeastern, mid-Atlantic, and north-central United States.The western blacklegged tick (Ixodes pacificus) spreads the disease on the Pacific Coast.Ticks can attach to any part of the human body but are often found in …

