http://legacy.wbur.org/2012/06/27/lyme-vaccine

From the link:

Actually, modern science has given us a human vaccine against Lyme disease.

Too bad we don’t use it.

“Lyme disease is the only infection I know of where we have a safe and effective vaccine, but it’s not available to the public,” says Dr. Allen Steere, the physician who uncovered the disease. Steere was 33 years old back in 1975 when he was sent to the Connecticut town of Lyme to look into a mysterious cluster of kids who had gotten arthritis.