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The invention of the microscope is usually credited to Zacharias Janssen
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The first protist observed was by Antonie van Leeuwenhoek, who also was the first person to observe bacteria.
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The first bacteria observed was by Antonie van Leeuwenhoek, in 1676
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Edward Jenner is born in Berkeley, United Kingdom to Stephen Jenner and Sarah Jenner
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In 1796, Edward Jenner gave James Phipps the first smallpox vaccination, using cowpox.
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John Snow is born in North Street, New York, to William and Francis Snow.
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Edward Jenner dies because of the paralysis of his right side. He is buried in Church of St Mary, Berkeley.
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Walter Reed is born in Belroi, Virginia, to Lemuel Sutton Reed and Pharaba White.
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John Snow discovers how Cholera is spread and by doing so, is able to stop a Cholera outbreak in Soho by shutting down a water pump
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John Snow dies from a stroke. He is buried in Brompton Cemetery.
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Alexander Fleming is born in Darvel, UK to Hugh Fleming and Grace Stirling Morton
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The first virus discovered was the Tobacco mosaic virus, by Martinus Beijerinck
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Walter Reed and his colleagues discover that yellow fever is transmitted through mosquitoes
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Walter Reed dies in Washington, D.C. due to a ruptured appendix. He is buried in Arlington National Cemetery, Arlington, Virginia.
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Alexander Fleming discovers penicillin, the first antibiotic. It helps many patients and is massively antibacterial.
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The first virus observed was the tobacco mosaic virus.
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Alexander Fleming dies in his home at Chelsea, London, due to a heart attack. He is buried in St. Paul's Cathedral, London.
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Christian Drosten is born in Lingen, Germany.
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Christian Drosten, in partnership with Stephan Günther, develops the first ever test for SARS. This test also lay the groundwork for the Covid-19 (SARS-Cov-2) test.
