@aviationdoctor.eth
Lastly there’s the fact that the disease was not as well understood back then, and it’s really hard to measure the rate of infection because the denominator is basically a guess (how many times people had sex, with how many partners, how many practices were involved, which one led to the infection only detected months later, etc — essentially a recall problem with an incentive for subjects to be untruthful, leading to uncertainty in the denominator).
I think it’s a stretch to conclude (like the X poster does) that it was a “huge misinformation campaign”, which implies a deliberate and concerted effort to exaggerate the risk.