E. COLI 0157:H7. E.Coli 0157:H7 It is one of the hundreds of strains of the bacterium Escherichia...
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Transcript of E. COLI 0157:H7. E.Coli 0157:H7 It is one of the hundreds of strains of the bacterium Escherichia...
E. COLI 0157:H7
E.Coli 0157:H7
It is one of the hundreds of strains of the bacterium Escherichia coli
This strain produces a powerful toxin and can cause severe illness
First recognized as a cause of an illness in 1982
Most infections have come from the consumption of uncooked meat
E.Coli 0157:H7
The combination of letters and numbers in the name of the bacterium represent the specific markers found on its surface.
An emerging cause of foodborne illness with an estimated 73,000 cases of infection and 61 deaths in the United States alone each year!
E.Coli 0157:H7
Mode of Transmission: Ingestion of contaminated food
Infection control: No special isolation precautions required
Incubation period: 3-8 days
How Is It Spread?
Found on a small number of cattle farms in the intestines of healthy cattle
Meat CAN be contaminated during slaughter and can be mixed in particularly with ground beef.
Bacteria is present on the cow’s udders or on equipment and therefore could possibly get into raw milk as well.
How Is It Spread?
Eating meat, particularly ground beef,that has not been sufficiently cooked can cause infection.
Other sources of consumption: sprouts, lettuce, salami, unpateurized milk and juice, and swimming in or drinking sewage-contaminated water.
How Is It Spread?
Bacteria in diarrheal stools of infected persons can be passed from one person to another.
KEEP HYGIENE HABITS!
Pay particular attention to toddlers who aren’t yet toilet trained.
Young children can shed organism in their feces for a week after illness resolves.
Centers for Disease Control and Prevention CDC collects
information about foodborne illness outbreaks from state and local health departments.
Claims that 250 million Americans suffer from food poisoning and over 5000 victims die every year!
Most of the outbreaks are caused by food handling errors
Managers should implement the most effective food sanitation possible
70% outbreaks occur in foodservice operations
Centers for Disease Control and Prevention
What illness does 0157:H7 Cause? Often causes severe bloody diarrhea and abdominal
cramps (Hemorrhagic colitis)
Usually little or not fever is present
Illness resolves in five to ten days
With children under 5 yrs. & elderly, it can cause a complication called hemolytic uremic syndrome.
2%-7% have this complication.
Principal cause of acute kidney failure in children.
Prevention
Cook all beef thoroughly, particularly ground beef
Beef can turn brown before disease-causing bacteria all killed
Use a digital instant-read thermometer
Prevention
In the kitchen, keep raw meat separate from ready-to-eat foods
Wash hands, counters, and utensils with soapy water after they touch raw meat.
Never place cooked hamburgers or ground beef on the unwashed plate that held raw patties.
Wash meat thermometers in between tests of patties that require further testing.
Prevention
Drink only pasteurized milk or juice.
Wash fruits and vegetables thoroughly
Have municipal water treated with chlorine or other disinfectants
Avoid swallowing lake or pool water while swimming
Wash hands with soap after bowel movements or after changing soiled diapers.
Thawing Meat
Thaw foods in refrigerator units under water of 70 F or lower
Or in the microwave oven
Thaw ready-to-eat foods above raw
Large items should not be cooked from frozen state
Outbreaks
Scottish outbreak--linked to butcher shop; 116 people reported with symptoms; 4 people died
Odwalla fruit juices-- had to recall on carrots and vegetable juices; victims were children; apples were contaminated through feces of cattle grazing in nearby pasture
Georgia Water Park--10 children were affected and 1 died; link to child defecating in children’s wading pool
Japan Outbreak-- 9 people died in 4 week time span; bacteria infected over 9000 people; 5000 of which were school children