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Besides enterotoxin, does V. cholerae possess an endotoxin? If it does, is the toxin a significant virulence factor?
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- What is the difference of cytotoxin and enterotoxin of Salmonella typhi?Why does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.What part of the Escherichia coli cell contains endotoxin?
- Describe the virulence factors of H. pylori that allow it to colonize the stomach and survive phagocytosis.How can we prove the pathological and clinical effects of cholera are caused by the production of enterotoxin?All of the following are true of Legionnaires’ disease excepta) the causative organism can grow inside protozoa.b) it spreads readily from person to person.c) it is more likely to occur in long-term cigarette smokers than in nonsmokers.d) it is often associated with diarrhea or other intestinal symptoms.e) it can be contracted from household water supplies.
- Explain how the body (including cells, organs, organ systems) is affected by the bacterium called Neisseria meningitidis? Are there any long-term effects caused by the bacterium, even after recovery?Cholera is most commonly transmitted through which route? A)Wound contamination 3)The bite of a tick 4)Fecally contaminated water 5)Close physical contactHow can we experimentally prove that enterotoxin (A-B cholera toxin) is the sole cause of clinical symptoms of Cholera?
- Helicobacter pylori causes O 1) duodenal ulcers. O 2) increased risk for stomach cancer. O 3) stomach ulcers. 3) 4) gastritis. 5) All of the choices are correct.Does Enterococcus faecium likely infect the diseased organ through the urinary tract or through the bloodstream? Explain your reasoning.What is the role of α-toxin in the pathogenesis of S. aureus?