Final answer:
Lyme disease is caused by the bacteria Borrelia burgdorferi that is transmitted by Deer ticks. It is the most commonly reported vectorborne illness in the US.
Step-by-step explanation:
Lyme disease is caused by the spirochete Borrelia burgdorferi that is transmitted by the bite of a hard-bodied, black-legged Deer tick. Different species of Ixodes ticks are responsible for Borrelia burgdorferi transmission in different regions. In the US, Lyme disease is the most commonly reported vectorborne illness.