iirc the vaccines stopped the tick from successfully transferring the bacteria. it didn't make the body able to better combat it. (and if you read the article l

iirc the vaccines stopped the tick from successfully transferring the bacteria. it didn't make the body able to better combat it. (and if you read the article linked it explains that its not actually the killing of the spirochete that is the problem its the remains of it and how the host body responds to those remains.)