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The History of Penicillin


Rhea Serron

on 25 January 2013

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Transcript of The History of Penicillin

By Rhea Serron and Samuel Do The History of Penicillin Sir Alexander Fleming In 1928, Sir Alexander Fleming discovered that the mold Penicillin can destroy bacteria Staphylococcus aureus. Dr. Howard Florey Andrew J. Moyer In 1941, Andrew J. Moyer succeeded in increasing yields of penicillin by 10 times. In 1939, Dr. Howard Florey discovered the antibiotic properties of penicillin. Penicillin is one of the earliest discovered and widely used antibiotic agents derived from the penicillin mold. What is Penicillin? Life Before Penicillin Before penicillin, many people died of simple infections such as sore throat as well as complicated diseases. DISEASES INFECTIONS pneumonia, meningitis, erysipelas, scarlet fever, diphtheria, blood poisoning, syphilis, gangrene, strep throat. AND How Penicillin Worked Originally Penicillin worked originally by damaging and penetrating bacteria cell walls. Thus killing the bacteria cells. Improvements to Penicillin Over time, bacteria have become resistant to penicillin. To solve this problem, scientist have added other antibiotics to penicillin. Results of the combination of antibiotics are penicillin + aminoglycosides Examples: Ampicillin, flucoxacillin, dicoxacillin, and methicillin Also, scientists changed the structure of penicillin to make new forms which could treat a wider range of infections. How Penicillin was Discovered Like most fabulous discoveries, Penicillin was not invented on purpose. While Sir Alexander Fleming was studying the mold penicillin, he accidentally licked the petri dish. While he was studying penicillin, Sir Fleming was sick. After about a week or so after licking the petri dish, Fleming felt that his sickness was almost gone. Penicillin in Society Today Penicillin is used all over the world today. As an example, doctors give injections or tablets of penicillin to their patients to kill bacterial infections. Remember,
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