Who discovered Penicillin? - Mocomi Kids

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  1. 1. TODAY WE USE A HOST OF ANTIBIOTICS TO TREAT DISEASES AND TO PREVENT THE ONSET OF INFECTIONS. DO YOU KNOW THAT THESE LIFE-SAVING ANTIBIOTICS WERE NOT AVAILABLE UNTIL THE EARLY I94OS? PENICILLIN WAS DISCOVERED BY A STROKE OF LUCK AT ST.MARY'S HOSPITAL IN LONDON BY DR.ALEXANDER FLEMING. AN ACCIDENTIN I928, FLEMING WAS RESEARCHING STAPHYLOCOCCUS AUREUS,A DISEASE-CAUSING BACTERIUM,WHEN HE LEFT FOR A LONG VACATION WITH HIS FAMILY. WHEN HE RETURNED TO HIS LAB,HE FOUND THAT HIS LAB WAS COMPLETELY CLUTTERED. HE HAD FORGOTTEN TO CLEAN UP BEFORE LEAVING. HE STARTED TO SORT OUT THE DIRTY PETRI DISHES THAT WERE COATED WITH STAPHYLOCOCCUS BACTERIA. DISCOVERYONE OF THE PETRI DISHES HAD MOLD ON IT.THE MOLD WAS CIRCULAR IN SHAPE AND THE AREA AROUND THE CIRCLE WAS FREE OF THE BACTERIA STAPHYLOCOCCUS. FLEMING CONCLUDED THAT THE BACTERIA ON THE PETRI DISH AROUND THE RING MUST HAVE BEEN KILLED BY SOME SUBSTANCE THAT HAD COME FROM THE MOLD. FLEMING DISCUSSED THE MOLD WITH MYCOLOGIST C. J. LA TOUCHE WHO HAD HIS OFFICE RIGHT BELOW FLEM| NG'S. MOLD SAMPLES ROLE OF LUCKTOGETHER,THEY EXAMINED THE MOLD CLOSELY AND FOUND OUT THAT THE MOLD IN THE PETRI DISH WAS A PENICILLIUM MOLD. FROM WHERE DID THIS MOLD COME?MOST LIKELY,FROM LA TOUCHE'S ROOM DOWNSTAIRS. LA TOUCHE WAS COLLECTING VARIOUS TYPES OF MOLDS FOR HIS RESEARCH AND AS LUCK WOULD HAVE IT,SOME FLOATED UP TO FLEMINGS LAB. KINGSTON LA TOUCHE~, v HOWARD FLOREYTEAM EFFORTTHOUGH FLEMING UNDERSTOOD THE POTENTIAL OF PENICILLIN MOLD,HE WAS UNABLE TO ISOLATE THE ACTIVE ANTIBACTERIAL ELEMENT,PENICILLIN. IN I940, TWO SCIENTISTS AT OXFORD UNIVERSITY,HOWARD FLOREY AND ERNST CHAIN WERE ABLE TO ISOLATE PENICILLIN. IN I94-I,CHARLES FLETCHER,A DOCTOR EMPLOYEDAT A HOSPITAL IN OXFORD,CAME TO KNOW ABOUT THEIR WORK. / ,ERNST CHAIN