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2 март 1955 г. - Jonas Salk

Описание:

Created the IPV for polio - it's an inactive vaccine that isn't alive and doesn't have to be refrigerated. He created the first successful vaccine.

Добавлено на ленту времени:

Tis but a scratch: Disease Timeline

13 дек 2018

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Дата:

2 март 1955 г.

Сейчас

~ 70 г назад

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