> Thankfully, people back then weren't afraid to notice that the first generation of Polio vaccines actually gave Polio to some who took them. Instead of denying the possibility that their vaccine was imperfect, or telling everyone "our vaccine is good enough!, sometimes you have to break a few eggs to make an omelet", they improved/perfected the vaccine
This is untrue. An experiment in the 30s at New York University did indeed give polio to some people, but that was never marketed as a workable vaccine. The vaccine developed in the early 50s, which was marketed, was extremely effective, developed by different people, and is still in use today.
The oral polio vaccine, which was developed later, is also in use today (though it is being discontinued in the developed world), and that one _is_ known to very occasionally induce polio.
So, to be clear, the first generation of polio vaccines did _not_ give polio to those who took them. The second generation, which has historically been more popular because people are more comfortable with oral than injected vaccines, occasionally does, though it's extremely rare.
>So, to be clear, the first generation of polio vaccines did _not_ give polio to those who took them. The second generation, which has historically been more popular because people are more comfortable with oral than injected vaccines, occasionally does, though it's extremely rare.
My recollection of the details was mistaken. Thanks for the correction.
This is untrue. An experiment in the 30s at New York University did indeed give polio to some people, but that was never marketed as a workable vaccine. The vaccine developed in the early 50s, which was marketed, was extremely effective, developed by different people, and is still in use today.
The oral polio vaccine, which was developed later, is also in use today (though it is being discontinued in the developed world), and that one _is_ known to very occasionally induce polio.
So, to be clear, the first generation of polio vaccines did _not_ give polio to those who took them. The second generation, which has historically been more popular because people are more comfortable with oral than injected vaccines, occasionally does, though it's extremely rare.