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24 Dez 1988 Jahr - Campaña mundial de vacunación contra la poliomielitis

Beschreibung:

Inicia la campaña mundial de vacunación contra la poliomielitis, disminuyendo los casos de contagio hasta un 99%.

Zugefügt zum Band der Zeit:

HISTORIA DE LA BIOQUÍMICA

ByMARLON RENE ALARCON PRIETO
15 Sep 2022
0
0
504

Datum:

24 Dez 1988 Jahr
Jetzt
~ 36 years ago

Abbildungen:

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