@PodunkPotato @BowsacNoodle @Shadowman311 I'd like a citation to "stroked out about 1% of all babies born in 1979," I think I would have noticed that or heard it from the pediatricians I knew at home, but I was busy in college by the end of that year.
The issue was the "w" whole cell pertussis (whooping cough) component from 1926, made from a bacteria so it was by definition a witch's brew with a zillion potential antigens vs. a virus with a very limited number (even herpes viruses "only" have about a hundred, but chickenpox is one of them).
But it significantly more effective than the replacement "a" acellular version which is also in the TDaP shot everyone should get every ten years, five if you have a bad enough wound, the T is for tetanus. With the obvious cost of higher rates of adverse effects.
Hmmm, per Wikipedia per the paper linked below (didn't read the paper but will if anyone wants. or, rather, look up what's in each vaccine), the 1996 DTaP vaccines for children use multiple pertussis antigens, up to five, and I've separately read just using one toxiod (these are modified/deactivated toxins) in TDaP is much less effective than two or more, and of course the whole cell version.
But there's no doubt the whole cell pertussis vaccines was relatively harsh, probably the most most harsh of all routine vaccines, (((lawyers))) were taking advantage of this, and a childhood vaccine injury quasi-court was set up to deal with the general set of issues. Otherwise manufacturers would have stopped marketing their vaccines in notoriously, from the founding sue-happy USA.
Will follow up on where BANTS will lead us in vaccine refusal (TL;DR: a hell of a lot of dead children).