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25 agos 2020 anni - Polio

Descrizione:

Africa is declared free of wild polio, the second virus to be eradicated from the continent since smallpox 40 years previously

Aggiunto al nastro di tempo:

2020 and future

ByColin O'Donnell

28 dic 2020

1

0

1309

Data:

25 agos 2020 anni

Adesso

~ 4 years and 9 months ago

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