Why Do Ticks Carry Lyme Disease? The Transmission Cycle
Ticks do not naturally have Lyme disease. They pick up the bacteria when they feed on an infected animal. Ticks may then pass those bacteria to you during a later blood meal. In the United States, the main culprit is the blacklegged tick, which transmits Borrelia burgdorferi, the bacterium most often responsible for Lyme disease….