PowerPoint Slideshow about 'Penicillin By Nick Petersen' - tanuja
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Penicillin is among the most powerful and most primitive of antibiotics. Penicillin was discovered by Alexander Fleming and mass-produced by Howard Florey. Without it, most of the population of Europe and America would have succumbed to everyday diseases like typhoid fever, the flu, rheumatic fever, strep throat, and diarrhea. Penicillin has led to some of the lifesaving medicines we have today. Penicillin has a long history and many interesting facts within it’s history.
Alexander Fleming was born in Barvel, Scotland on August 6, 1881. He was a bacteriologist at St. Mary’s Hospital in London in 1928. In 1928 he was examining a Petri dish containing the bacteria Staphylococcus when he noticed that it had become contaminated with a mold spore. On further inspection he noted that all the bacteria around the mold had died. Due to lack of funding because of World War 1 he could not continue his work. He published his findings in 1929. He died on March 11, 1945.
In 1943 penicillin was tested and proven to be the most effective antibacterial agent to date. It became available for wounded soldiers on D-Day. In 1940 penicillin was priceless, on July 1943 it became twenty dollars a shot, and in 1946, a year after it became available to the general public, it became fifty-five cents a shot. Without penicillin people today would be dying from simple sicknesses like the flu. . Penicillin has led to some of the lifesaving medicines we have today. Simple infections led to horrible diseases before penicillin. Before we begin to walk we are given penicillin shot to save us from dangerous bacteria. The population of every country would be smaller without penicillin.
In 1939 Dr. Howard Florey and three colleagues at Oxford University started researching and began to demonstrate penicillin’s ability to kill bacteria. On July 9th, 1941 Howard Florey and Norman Heatley came to the United States with a small sample of the fungus Penicillium Chrysogeum. They resumed their research at Peoria Labs. At the labs they began experimenting to see which species of fungus could produce the most penicillin. The kept the fungus in large vats and feed it corn steep liquor (a non alcoholic by- product of the wet milling process). An interesting fact to note was that the strain of fungus that produced the most penicillin was found on a moldy cantaloupe in a Peoria market. By 1940 Florey had converted penicillin into a dry, stable, brownpowder.