Coliform bacteria are common contaminants of meats. High coliform counts in food indicate the potential for finding which intestinal pathogens?
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Coliform bacteria are common contaminants of meats. High coliform counts in food indicate the potential for finding which intestinal pathogens?
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- Food poisoning can be divided into two categories: food infection and food intoxication. On the basis of toxin production by bacteria, explain the difference between these two categories.If there is a causal relationship between the presence of H. pylori and ulcers, how might you explain that 50% of the patients with a normal endoscopic examination were infected with the bacteria?Which statement among A-E is false concerning digestive system and gastrointestinal (GI) tract infections? A) O The more severe forms of gastroenteritis, like dysentery, produce abdominal cramps, fever, and blood. B) ORehydration and electrolyte replacement are typically the treatment for those with GI tract infections. C) O Invasive GI tract infections are caused by intracellular pathogens such as Salmonella and certain E coli. D) O Among protozoal pathogens, Giardia is a major cause of gastroenteritis. E) O Most GI tract infections are due to viruses. F) OA-E are all correct.
- E.coli is part of the normal microbiota of the intestines and can cause gastroenteritis. Explain why this one bacterial species is both beneficial and harmful.Which of the following tests is used to differentiate between pancreatic insufficiency and intestinal malabsorption? 1) Lactose tolerance test 2) Beta-carotene 3) Fecal fat analysis 4) D-xylose no references, just homeworkWhich of the following bacterial species is considered normal flora of the mouth? O 1) Streptococcus mutans 2) Escherichia coli 3) Klebsiella pneumoniae 4) Staphylococcus epidermidis
- What would be the expected out come of bile esculin test If the bacteria is a pathogenic intestinal bacteria?Indicate some possible ways in which foods may become contaminatedwith enteric organisms.While it is true that not all coliforms are pathogenic under normal conditions, please name two situations that can occur due to infection by coliforms under abnormal conditions (when they are present where they are not supposed to be or when their numbers exceed acceptable levels)
- The large intestine contains bacteria, such as E.coli, that synthesize vitamin K and some B vitamins and absorbed into the bloodstream. Answer the following questions: 1. Describe the type of symbiosis best represented by E.coli and human large intestine. 2. When can E.coli become potentially pathogenic (disease-causing)? Explain briefly.Differentiate between bacterial infectionand bacterial intoxication. Discuss the importance of E. colias part of our intestinal flora. Describe three (3) different types of gastrointestinal diseases caused by bacteria. Be sure to give the name of the specific organism that causes each, describe some common signs and symptoms and discuss treatment for each disease: Define meningitis.Compare and contrast between bacterial and viral meningitis including treatment for each. What is a prion? Describe the impact prionshave on the human brain and discuss two prion-associated diseases in humans: What is a vector-borne (vector transmitted) disease? Give an example of a vector borne disease and the vector responsible for causing it:What is dental plaque? What is the role of bacteria in the production of dental caries?