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25 Aug 2020 Jahr - Polio

Beschreibung:

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

Zugefügt zum Band der Zeit:

2020 and future

ByColin O'Donnell

28 Dez 2020

1

0

1428

Datum:

25 Aug 2020 Jahr

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~ 5 years and 2 months ago

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