33
/es/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
428475
36329
2
Public Timelines
FAQ Obtener premium

26 mar 1953 año - Polio

Descripción:

Dr. Jonas Salk tells the public that he's come up with a vaccination for Polio. In April of 1955 it was said that his vaccination for it was effective and safe.

Añadido al timeline:

14 dic 2017
0
0
449

fecha:

26 mar 1953 año
Ahora mismo
~ 72 years ago

Fotos: