281 Q: WHO CHANGED THE DEFINITION? A: Their single biggest individual donor, maybe? (media.patriots.win) posted 2 years ago by YoFoo 2 years ago by YoFoo +281 / -0 22 comments download share 22 comments share download save hide report block hide replies
So there has never been herd immunity to any disease without a vaccine??
Yes. Plenty. Most vaccines in the last century were approved for use years after the their respective viruses had already run the course.