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11h 7min, nov 9, 1948 y - Tos ferina: vacuna combinada con las del tétanos y la difteria

Description:

La primea vacuna DTP (difteria, tétanos y tos ferina) combinada estuvo disponible en Estados Unidos. Este

Added to timeline:

Vacunación

ByReDCid UvU
16 Nov 2017
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319

Date:

11h 7min, nov 9, 1948 y
Now
~ 76 years ago

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