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Campaña de vacunación mundial para erradicar la viruela (1 gen 1950 anni – 1 gen 1980 anni)

Descrizione:

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

Aggiunto al nastro di tempo:

Fechas importantes en biología

ByDaniel Perez
19 mar 2023
0
0
689

Data:

1 gen 1950 anni
1 gen 1980 anni
~ 30 years
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