Ignaz Semmelweis
#. Ignaz Semmelweis Ignaz Semmelweis was a doctor from Hungary. He practiced medicine in the 19th century. Back then, even doctors didn't wash their hands. They didn't know about germs yet. So, many patients got infected and even died. Then in the 1840s, Semmelweis made a surprising discovery. He found that washing hands led to fewer patient deaths. He even suggested a chemical to use during han..
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2020. 5. 15. 21:32
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