Read about LYMErix the Lyme Disease Vaccine - long story short, it gave people Lyme and had to be pulled from the market.
CDC (Dearborn) also changed the test for Lyme Disease to make it HARDER to be diagnosed with Lyme so it would look like the vaccine was working. CDC personnel made $$$ off of this personally.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2870557/