The number of Lyme disease cases in people in the US has tripled over the past 20 years.
Lyme disease is the most frequently reported vector-born disease in humans and dogs in the US.
Use of Lyme vaccine now seems to be reducing the number of clinical cases of Lyme disease in dogs.
The Lyme vaccine for canines is not viable for humans; it caused lyme disease symptoms in humans.
Dogs can have protection against lyme disease with the vaccine and acaricides (tick killing preventatives).