
CSPAN @cspan
Q&A @UCBerkeley historian of public health, medicine, environment & science journalism @elenaconis on the development of the polio vaccine in the 1950s and the lessons that its distribution - 8pm ET on C-SPAN https://t.co/TSYuuDwKJx https://t.co/FpeJfB02rR — PolitiTweet.org