27 фев 1979 г. - Polio
Описание:
Since 1979, no cases of Polio have originated in the United States. The virus though has been brought into the country by travelers; the last act of such occurring in 1993.(from https://www.cdc.gov)
Добавлено на ленту времени:
Дата:
27 фев 1979 г.
Сейчас
~ 46 г назад