For what it’s worth, My father was in the US Army in the 1950’s. Due to some SNAFU medical record keeping, he received multiple polio vaccines.
If I recall the story correctly, it was either after 5, or on the 5th on that he flatly refused to be vaccinated again...
After a bit of a row, the Army figured out that he’d been vaccinated previously, and that the record keeping just hadn’t kept up. Anyway, some brief time later my mother conceived a male child who was born with leukemia. This child, their first, did not survive the disease.
My father died in May of 1987 at the age of 51 years, and to his last day; he believed that the Army’s polio vaccines had cost him a son.
Now I suspect that he may have been right.
I am sure he was right. My dad had vaccines in the navy during the Korean conflict. He wound up with mesothelioma as did many of those given the shots during that time. His brother, who was on the same battleship, also got cancer of the bone. Interesting 2 farmers who neither drank or smoke wind up with a cancer when not a single of other family member before on either side did. We are being poisoned. Period.