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29 март 1954 г. - Measles vaccine

Описание:

Safe, effective vaccine devloped
Mass immunization camoaign started to reduce casses of measles in developed countries

Добавлено на ленту времени:

new disease

14 дек 2018

1

0

552

Дата:

29 март 1954 г.

Сейчас

~ 71 г назад

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