4.Estimated 500,000 cases per year
Duration: 3-7 days (fatality similar to Salmonella)
Sign of a very filthy/contaminated operation.
is associated with feces, raw sewage, rodent or pest
Foods: many, similar to Salmonella
Prevention: contamination, hygeine
2500 cases, 400 deaths
the most deadly FBI
Fever, blood poisoning, abortion
Common organism is nature, soil,
Carriers = 5% of population
Many recent, localized problems.
Usually related to under-pasteurized milk.
Major problem: Listeria can reproduce at 40
cheeses, milk, deli foods, fruit juices (unpasteurized)
Escherichia (E.) Coli
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,