Lyme disease is transmitted by which tick?

• A. Deer tick
• B. Dog tick
• C. American dog tick
• D. Lone star tick

Answer: (A)

Lyme disease is spread by ticks in the Ixodes genus, most commonly the deer tick (also called the black-legged tick) in many parts of the United States. The bite only transmits Borrelia burgdorferi after the tick has been attached for a period, often a day or two, so prompt removal reduces risk. Among the options, the deer tick is the one known to transmit Lyme disease; the dog tick and American dog tick are not typical vectors for Lyme (they carry other diseases), and the lone star tick is linked to different illnesses. If you’re outdoors, checking for and removing ticks promptly, wearing protective clothing, and using preventive measures helps reduce risk.