33
/es/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
1938694
148412
2
Public Timelines
FAQ Obtener premium

2 mar 1955 año - Jonas Salk

Descripción:

Created the IPV for polio - it's an inactive vaccine that isn't alive and doesn't have to be refrigerated. He created the first successful vaccine.

Añadido al timeline:

fecha:

2 mar 1955 año
Ahora mismo
~ 70 years ago

Fotos: