I don’t think it’s vaccines. Almost 100% of the population was immunized in the 50’s through the 70’s, if that was the issue, these problems would be far more prevalent.
I’m thinking more in line with tick borne diseases like Lymes
or this http://www.foodsafetynews.com/2012/06/red-meat-allergy-likely-caused-by-tick-bites/#.UTrJ4hzvsQI
or this
Not that all of is tick or insect born, but the fact is, there are millions of bacteria and viruses out there, unknown and unidentified and trying to kill us.
I think Alzheimer’s might be tied to oral spirochetes and poor dental hygeine.
The polio vaccine was given pre 1950 and what docs are seeing now is post polio syndrome, which direct cause is/was the vaccine.