Kathenas (Phil Wyett) 🐧 (@kathenasorg): "50 years ago, scientists debated the necessity of a smallpox vaccine https://www.sciencenews.org/article/50-years-ago-scientists-debated-necessity-smallpox-vaccine" | nitter

Kathenas (Phil Wyett) 🐧 @kathenasorg

31 Jan 2020

50 years ago, scientists debated the necessity of a smallpox vaccine sciencenews.org/article/50-y…

Jan 31, 2020 · 12:34 PM UTC