Complete the sentence about Ignác Semmelweis with the correct year: The maternal mortality rate dropped from 18% to less than 2%, and he published a book of his findings, Etiology, Concept and Prophylaxis of Childbed Fever, in ______.
Answer and explanation
Correct answer: C. 1861
Ignaz Semmelweis was a Hungarian doctor and early pioneer of antiseptic procedures. After he introduced hand washing with chlorinated lime in 1847, maternal mortality fell from 18% to under 2%, and in 1861 he published his findings in Etiology, Concept and Prophylaxis of Childbed Fever.
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