How does one contract ehrlichiosis?

How does one contract ehrlichiosis?

Ehrlichiosis results from the bite of a tick carrying one of the forms of Ehrlichia bacteria. Many types of ticks, Lone star ticks, deer ticks, and dog ticks can carry ehrlichia bacterium. Blacklegged ticks also spread the infection.

Rarely, blood transfusions or organ transplants infected with the bacterium have caused ehrlichiosis.