Horns11
10,000+ Posts
No evidence because 1) these are all arguably still in a trial phase and 2) there has not been any meaningful effort into studying that element of potential adverse reaction.
Issues related to fertility are something that NO meaningful pronouncement can be made for at least a few years. It isn't like every test subject or even those in the general population being injected then promptly rush out for an injection of a different type...
Until someone is actually trying to get knocked up, they won't know whether they are actually infertile or not...some who are infertile as a side effect might even simply believe they have been lucky for the past few months or that whatever method of contraception in use has thus far not been a failure.
But how do they prove that it was the vaccine that caused their infertility? The link from "this was only approved for emergency use" to "not studied enough to prove that it doesn't cause infertility" is the same type of narrative that Andrew Wakefield wove with his autism fearmongering.
Using his methodology, we could potentially find infertile people who got the vaccine and use that as our correlation. It would be flawed, to say the least, but that's enough for a subpopulation to buy the t-shirts and listen to Joe Rogan podcasts about it.