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Alexander Fleming made a great contribution to the world though an accident led to the discovery. he noticed in a petri plate of his that there was a clearing area of bacteria around a golden yellow mold. this mould was penicillin species . therefore he thought that the bio product released by penicillin is responsible for the restriction of growth for the bacilli species.



Because of this, Howard Florey and Ernst Chain managed to concentrate penicillin and make it effective to use as a antibacterial drug. It is currently a medical standard today

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15y ago

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