Yersinia Pestis Bacteria Term Paper

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Helicobacter pylori is a gram-negative germ (bacterium) that typically infects the stomach or duodenum, but can also be found in other parts of the body. This bacterium is very common and it is believed that approximately half of the planet's population has it. Individuals in developing countries are predisposed to it as a consequence of poor sanitary conditions in these areas. The bacteria can typically be found in the inner lining of the stomach and it can lead to conditions like gastritis, ulcer, or even cancer. There are a series of variables that can influence the disease most likely to affect a person, with his or her background playing an important role in the bacteria's development.

People are most commonly infected as a result of eating or drinking foods or liquids that are contaminated. One is also likely to contract the bacteria if he or she interacts with another individual having it. Treatment is widely available, especially in the developed world, and this makes prevalence less common in first-world countries. In contrast, the prevalence seems to be stable in developing and underdeveloped countries. "In countries with poor sanitation, approximately 90% of the adult population can be infected." (Helicobacter pylori) Once a person is infected, the bacteria is likely to stay with him or her for the rest of their lives as long as they do not receive treatment in order to remove it.

In order to determine if an individual is infected with the bacteria, doctors can use a wide variety of tests of:

Stool samples

Breath

Blood

Biopsy samples collected through endoscopies

Most individuals infected with the bacteria are unaware they have it, as it rarely has obvious symptoms and it is unlikely to cause serious problems in the early years of the infection.

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Even with this, Helicobacter Pylori is one of the principal causes of ulcers in the stomach and duodenal areas. Approximately 3 in every 20 people infected with the bacteria are probable to have an ulcer. "An ulcer occurs where the lining of the stomach or duodenum is damaged by the acid made in the stomach and the underlying tissue is exposed." (Helicobacter Pylori and Stomach Pain) The longer a person is infected, the higher the risk is for the respective individual to develop more serious conditions. People who have cases of ulcers or stomach cancers in their family are more likely to get sick, as….....

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