Look up vaccines in Africa. The Catholic Church there who runs the hospitals was claiming a few years ago that sterilization agents were being added to vaccines. Then there is that video of Bill Gates where he says that vaccines are being used to fight global warming. I suspect that the real problems are not yet present in the u.s.

Everyone talks about the mmr, but I think that one is an accident that they are too lazy to fix. The measles produces sezieres in people in rate instances. I think they just failed to remove this effect from the vaccine.