Jonas Salk invented the vaccine for Polio, a disease that caused paralysis and death for much of human history. When asked about the patent:pic.twitter.com/rgQdAKvmLv
8:03 AM - 22 Nov 2016
0 replies
8 retweets
23 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.