Health, 15.10.2019 17:10 lululoveee3433

The first vaccination was developed by a) using a culture of typhus to cure scurvy b) using a culture of cowpox to prevent smallpox c) using an elixir of fruit juice to prevent typhus d) using sheep's blood to prevent illness

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The first vaccination was developed by a) using a culture of typhus to cure scurvy b) using a cultu...

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