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24 dic 1988 anni - Campaña mundial de vacunación contra la poliomielitis

Descrizione:

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

Aggiunto al nastro di tempo:

HISTORIA DE LA BIOQUÍMICA

ByMARLON RENE ALARCON PRIETO
15 set 2022
0
0
502

Data:

24 dic 1988 anni
Adesso
~ 36 years ago

Immagini:

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