Subject: Dr Edward Jenner
Interesting history of the first vaccine, and elimination of smallpox. It's a shame the world can't pull together like we did in the mid-20th century, and set out to eradicate polio. We're close, but sadly drifting further away now as various factors and misinformation impede the effort. Polio is on the rise again.

https://www.youtube.com/watch?...
(Dr Mike)