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Campaña de vacunación mundial para erradicar la viruela (1 Jan 1950 Jahr – 1 Jan 1980 Jahr)

Beschreibung:

En un esfuerzo internacional, la ONU lanza una campaña mundial para erradicar la viruela.

Zugefügt zum Band der Zeit:

Fechas importantes en biología

ByDaniel Perez
19 Mär 2023
0
0
691

Datum:

1 Jan 1950 Jahr
1 Jan 1980 Jahr
~ 30 years
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