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24 déc. 1988 - Campaña mundial de vacunación contra la poliomielitis

Description:

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

Ajouté au bande de temps:

HISTORIA DE LA BIOQUÍMICA

ByMARLON RENE ALARCON PRIETO
15 sept. 2022
0
0
505

Date:

24 déc. 1988
Maintenaint
~ Il y a 36 ans

Les images:

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