Read this link: https://realnewsaustralia.com/2019/02/27/the-real-history-of-polio-20-things-you-didnt-know/
It tells of how the polio virus was used as a coverup by the chemical companies because they were poising people with their pesticides. Everyone has the polio virus and it never causes anything, it never did, it was always the pesticides that they were using on the food at the time. read the link The polio vaccines have killed many many more than the virus ever would have.
I found what you were looking for, but it's been taken down. Thanks to the wayback machine I found the original video. here is a quote from it.
“These vaccines are unlikely to completely sterilize a population. They are very likely to have an effect which works in a %, say 60 or 70%.” Believe him, someone who has these levels of credentials doesn’t misspeak without correcting himself."
Here is the link you just need to use the wayback machine to be able to see it
I know just the lawyer, "Lin Wood"