201 Lecture notes Autumn 2008_Part3

201 Lecture notes - 4.Estimated 500,000 cases per year 5 Onset 1-7 days 6 Duration 3-7 days(fatality similar to Salmonella 7 General a Sign of a

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11 4.Estimated 500,000 cases per year 5. Onset: 1-7 days 6. Duration: 3-7 days (fatality similar to Salmonella) 7. General a. Sign of a very filthy/contaminated operation. b. Shigella is associated with feces, raw sewage, rodent or pest contamination. Handwashing!!! c. Foods: many, similar to Salmonella d. Prevention: contamination, hygeine G. Lysteria monocytogenes: 1. General: 2002: 2500 cases, 400 deaths -- the most deadly FBI a. Infection b. Fever, blood poisoning, abortion c. Common organism is nature, soil, vegetation, water. d. Carriers = 5% of population e. Salt tolerant f. Many recent, localized problems. g. Usually related to under-pasteurized milk. h. Major problem: Listeria can reproduce at 40 E F. (1) cheeses, milk, deli foods, fruit juices (unpasteurized) I. Escherichia (E.) Coli 2002: estimated 250,000 cases in US 1) Recognized as a pathogen in 1982 2) Specific serotype = 0157:H7 (thousands of serotypes in nature) 75,000 cases 3) Causes an infection in GI; symptoms = bloody stool, severe abdominal pain 4) In young children or geriatric patients may lead to death due to hemolytic uremic syndrome (HUS) 5) Major sources: A) Muscle foods, (recent cases in ground beef) dairy cattle, beef cattle, chicken, pigs, lamb B) Vegetables (fresh spinach, baby carrots), fruits (apple cider) 6) Source of contamination: feces, cross contamination Domestic livestock can carry E. coli but not be “infected”. As they range and forage for food,
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This note was uploaded on 02/23/2012 for the course FDSCTE 201 taught by Professor Magino during the Fall '11 term at Ohio State.

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201 Lecture notes - 4.Estimated 500,000 cases per year 5 Onset 1-7 days 6 Duration 3-7 days(fatality similar to Salmonella 7 General a Sign of a

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