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5 июн 1994 г. - America declared Polio free

Описание:

Polio has come back now because of the reluctance of vaccines.

Добавлено на ленту времени:

The history of diseases that changed society, civilization, and life of humans

14 дек 2018

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Дата:

5 июн 1994 г.

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~ 31 г назад

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