marysamryBrini marysamryBrini

21-01-2017
Health

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Vaccinations were first used in what time period?

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jnthnsngh jnthnsngh

21-01-2017

Vaccinations were first used in the year 1796.

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pandamille pandamille

21-01-2017

Vaccinations were first used in what time period?
Edward Jenner's first smallpox vaccination in 1796

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