[kerkeslager]

No. Impurity problems have occasionally come up over the years, but they have largely been addressed quickly by existing regulations. And at no point have they ever approached the level of risk posed by the return of deadly infectious diseases. Age-related harms are largely unproven, and while they certainly warrant research, the percentage of issues again doesn't approach significance with comparison to infectious diseases.

There isn't a mass conspiracy of doctors to cover up the harms done to kids by vaccinations. The harms are understood well enough, now, to know unambiguously that the tradeoff of vaccinating your kids is more than worth it. More knowledge is always worthwhile, but we have enough knowledge now to decide that vaccinations are unambiguously the right path, and there is no scientific basis for reopening the discussion on that subject.

The "real problems" are the returning infectious diseases which have the potential to kill millions of people. I simply do not care about the issues you are bringing up when i.e. the return of rubella or polio is a real possibility.