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1 fev 1970 ano - Polio gone

Descrição:

Polio was almost eradicated in the US by the 1970s ("How Mandatory Vaccination Fueled the Anti-Vaxxer Movement")

Adicionado na linha do tempo:

History of Anti-Vaxxers

Byo

9 dez 2019

0

0

318

Data:

1 fev 1970 ano

Agora

~ 55 years ago

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