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1 ene 1955 año - The Cutter Incident

Descripción:

200,000 US children received a defective polio vaccine; causing 40,000 cases of polio, leaving 200 with paralysis and 10 dead

Añadido al timeline:

B HLTH 224

ByKelly Stevens

13 dic 2018

1

0

900

fecha:

1 ene 1955 año

Ahora mismo

~ 70 years ago

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