relatively harmless‚ but can occasionally cause food poisoning. It can also provide Vitamin K2. It prevents the establishment of pathogenic bacteria‚ and is associated with or found in the intestinal organ. The antibiotic that E. coli is resistant to is Penicillin. Bacillus subtilis—better known as B. subtilis—is known as the hay bacillus or the grass bacillus. It is gram and catalase positive. It is rod-shaped‚ with the ability to form a tough‚ protective‚ shield around itself. It can tolerate extreme environmental
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The effects of antibiotics on the growth of Escherichia Coli Problem: How do antibiotics affect the growth of E coli? Hypothesis: If Penicillin is applied to the bacteria‚ then the zone of inhibition will be larger. Background: The purpose of this lab was to see how effective a certain antibiotic is to kill E coli. The lab tested three antibiotics‚ Penicillin‚ Erythromycin‚ and Neomycin. The zone of inhibition‚ which is the amount of space the antibiotic kills in certain amount of time‚ determined
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TREATING TB. Keep in mind that Isonaizd(INH) is the established treatment for preventive therapy ‚ and the usual regimen is up to 300mg daily for adults. You can keep pts on for 6 months or 12 months with a positive CXR. Always give vitB6 when treating pts with INH. If there is a suspected resistance then use Rifampin (RIF) alone or in combo with the said INH. How do we treat current CLASSES III & IV diseases. The first line medications are used in combinations since these tend to delay
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history is penicillin. This was the first antibiotic ever to be discovered. Alexander Fleming was the person responsible for the discovery in 1928. In his laboratory‚ he noticed that in some of his bacteria colonies‚ that he was growing‚ were some clear spots. He realized that something had killed the bacteria in these clear spots‚ which ended up to be a fungus growth. He then discovered that inside this mold was a substance that killed bacteria. It was the antibiotic‚ penicillin. Penicillin became
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discovery of penicillin was sheer luck! Alexander Florey actually re-discovered at a St. Mary’s hospital in London‚ 1928. When testing it he noticed that penicillin was killing a number of disease-causing bacteria. On Page 123 it states‚ “He observed that a plate culture of Staphylococcus had been contaminated by a blue green mold and that the colonies of bacteria adjacent to the mold were being dissolved.”Dr. Howard Florey and three colleagues began intensive research on Penicillin ability to kill
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antibiotic out of Penicillin and Streptomycin that will work is Streptomycin. Penicillin is also effective antibiotic but it will only work on bacteria that Is gram positive because it is an antibiotic that has been designed in order to just work on gram positive because the antibiotic itself is gram positive. We know that Streptomycin was most effect due to their being a bigger zone of inhibition. Streptomycin was also the most effective because it affects the protein synthesis whereas Penicillin affects
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One may argue that one of the most helpful drugs during word war two‚ penicillin‚ was discovered in 1960‚ prior to world war two. Although penicillin wasn’t discovered during world war two‚ it was improved on many levels during the time such as production on an industrial scale‚ it became much more readily available‚ and by 1945 it was 20 times stronger than the 1939 version of penicillin. Therefore‚ even though penicillin was developed pre world war two‚ it made extreme improvements since 1939
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medicines in history namely Penicillin‚ Blood plasma and Sulfanilamide. These three innovations in the field of medicine helped save thousands of soldiers in World War II and are considered to be the most important medical advancements in the war. "Penicillin fought for the soldier as bravely as the soldier fought for his country" (www.lib.niu.edu). Out of the three innovations in medicine during World War II‚ penicillin undoubtedly was the most important. Penicillin was invented by Dr. Alexander
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of bacteria around it. With the Streptomycin‚ there was 2.5 cm of a complete lack of bacteria around it. Finally‚ the Penicillin had 1.8 cm of a faint amount of bacteria‚ but still had traces unlike the Erythromycin and Streptomycin. Discussion The Erythromycin had the highest diameter of complete lack of bacteria around it‚ followed by Streptomycin‚ and lastly‚ the Penicillin. The Erythromycin obviously was able to fight against the bacteria the best‚ which could be because of a variety of different
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bacterium’s susceptibility or resistance to a given drug which prompted W. M. M. Kirby and A. W. Bauer to develop a single disk method for susceptibility testing. This experiment used the Kirby-Bauer disk diffusion test to measure the degree to which Penicillin‚ Streptomycin‚ Ampicillin‚ and Chloramphenicol inhibited the growth of the bacterium‚ Proteus vulgaris. The measured zone of resistance for each antibiotic was compared against antibiotic performance standards maintained by the Clinical Laboratory
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