CDC: How Lyme Disease Spreads
Key points How it spreads The bacteria that cause Lyme disease in the United States, Borrelia burgdorferi and, rarely, B. mayonii, are spread to people through the bites of infected ticks. The blacklegged tick (or deer tick, lxodes scapularis) transmits infection in the northeastern, mid-Atlantic, and north-central United States. The western blacklegged tick (lxodes pacificus) transmits infection in areas […]