Just curious but did we have people carrying on about the diphtheria, polio, and other "new" vaccines back when they were first used? I only recall the excitement of having something, - - -anything, - - - to stop the ravages of these diseases. I honestly don't know and haven't researched it? When I was a kid, in the 30's, I don't even think that there was a polio vaccine being distributed at the time.
I don't remember any fuss and cry among any of our friends and family although I did know one kid who contracted polio and spent his time in an iron lung in his living room. He lived and wasn't crippled but it did harm other portions of his body.
Then to, there wasn't the equivalent of today's news media available back then. Folks had to rely on their local doctors, for the most part and didn't get their advice from their local preachers and political hacks as some do in our present world.