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/es/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
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3 ene 1955 año - Cutter Batch of Polio

Descripción:

A bad batch of polio vaccine accidentally infected kids who were injected with it. Interestingly once the new batch was made, parents still lined up to let their kids be vaccinated against the virus.

Añadido al timeline:

fecha:

3 ene 1955 año
Ahora mismo
~ 70 years ago