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Jan 1, 1347
Black Death hits Europe
• 75 million people were killed -
Edward Jenner invented Vaccines
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Vaccins were tested
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First major Polio outbreak in Vermont
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Smallpox outbreaks in Yugoslavia
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Aids first diagnosed
since then more than a million are diagnosed. Almost half a million die each year -
Ebola outbreaked in USA killing no one
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Ebola Outbreaks in USA killing 4 poeple
