For those who wanted a world without vaccines, witness the world without one vaccine.

Now we understand a tiny bit what it’s like living in a pre-vaccine world. Salk’s inactivated polio vaccine launched on a Friday (Mar. 12, 1954) changes the world by reducing cases of childhood paralysis from 350,000/year in 1988 to 33 in 2018... #FridayMotivation #FunFactFriday

...But there was also a naysayer in the same issue of the @nytimes. Albert Sabin, Salk’s competitor, said the research was going too fast, proving that even the greatest breakthroughs have their critics. #FridayMotivation #science #FunFactFriday