32. n early 1980s, Drs. Barry Marshall and Robinatt biopsies e bacteria in named

Question

32. n early 1980s, Drs. Barry Marshall and Robinatt biopsies e bacteria in named inflammation of the stomach mucosal lining) Paen a so found the band later shaped bacteria near inflamed stomach tissueter pylori and ymptoms of dev with gastric ulcers. The bacterium was pylori. About 80% of individuals Patient biopsies of their stomach lining They also found the bacteria in biopsies stomach cancer. named uals infected with the bacteria do not have any symptoms. o do develop gastritis have a 15% risk of developing ulcers and "1% cha showed spiral from patient sing Koch's postulates, indicate in 4-5 sentences how you would specifically at Helicobacter pylori is responsible for gastric ulcers. Spts pylori and later renamed H nce of developing and ethically demonstrate erperal fever is

Explanation / Answer

The Koch's postulates are a set of criteria outlined by the scientist Robert Koch, which were useful in identifying the causative organism of a particular pathogenic disorder. Koch's postulates state the conditions that an microorganism needs to satisfy, in order to be identified as the cause behind the occurrence of the disease. The postulates thus include :

In 1983, scietntists Warren and Marshall stated a link between the presence of H. pylori and gastric ulcers by reporting the presence of the bacteria in the gut along with the incidence of the disease. After this, the following observations have been made in regard to gastric ulcers, which illustrate the fact that this theory indeed fulfills the Koch's postulates :

These reports and evidences illustrate that the incidence of H. pylori in gastric ulcer patients is in accordance with the Koch's postulates and is indeed the causative organism for gastric ulcer.

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