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dec 30, 1931 - In 1932 German bacteriologist Gerhard Domagk announced that the red dye Prontosil is active against streptococcal infections in mice and humans.
Added to timeline:
Engineering 2 9/29/17
By
Josiah Valery
2 Oct 2017
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Date:
dec 30, 1931
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~ 93 years ago
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