Food Safety

Food Safety - Food Born Illness Food YOU could be next!!...

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Unformatted text preview: Food Born Illness Food YOU could be next!! What is food born illness? What A. Illness resulting from eating food Illness contaminated w/ a bacteria or virus. contaminated B. May cause outbreaks where many May outbreaks people become sick, with the same illness at the same time. (about 10% of a population) population) 1. Usually contaminated food comes 1. from a location away from home (restaurant, baseball game etc.). (restaurant, Epidemiology Epidemiology The tracking of outbreaks of The illness (not always food illness) to discover where the original source of contamination came from. of Why? Why? To PREVENT it from happening To again! again! Salmonella Salmonella A. Bacteria 1. Many types live 1. in poultry & swine (birds & pigs) (birds 2. Can be found in 2. environment environment a. water b. soil c. insects d. animal feces 3. Found in 3. undercooked meats, eggs meats, a. 1 in every 3 eggs is a. contaminated! contaminated! b. Illness can be b. avoided if eggs are cooked properly. cooked 3 Conditions BAC need to live Conditions 1. Warmth 2. Moisture 3. Nutrients 2 factors that kill BAC! factors 1. Extreme heat (this is BEST!) (this 2. Extreme cold Pasteurization - a heat treatment used to kill bacteria. (commonly used with milk & juice) used Symptoms Symptoms 1. Nausea 2. Vomiting 3. Stomach cramps 4. Diarrhea 5. Fever 6. Headache • CAN be fatal - RARE! After Ingestion of bacteria After 1. Will be sick within 6-72 hours after Will eating contaminated food. (NOT usually sick immediately after eating!) eating!) 2. Symptoms usually last 4-7 days 3. Most recover without antibiotics 4. Diarrhea can be severe enough to Diarrhea hospitalize person (dehydration) hospitalize A. Bacteria that Bacteria E. coli E. 3. Found in 3. produces a undercooked ground powerful toxin & beef & nonbeef can cause severe pasteurized milk. illness. illness. A. Meat can become A. 1. Most strains 1. contaminated during cattle slaughter. harmless cattle harmless B. Bacteria on cow’s B. 2. Live in 2. udders or on intestines of healthy humans & equipment can get into milk. into animals. animals. IMPORTANT vocabulary! IMPORTANT Cross Contamination - moving bacteria Host - original from one source to source of another. another. contamination. contamination. Vector - responsible party (object, machine) that actually carries the bacteria from source to source. source Symptoms Symptoms 1. All the same All symptoms as Salmonella. Salmonella. 2. PLUS you CAN PLUS have….bloody diarrhea! diarrhea! In children under 5 years old & in the elderly it can cause kidney failure, & destroy red blood cells RARE, only 2RARE, 7% of cases. After Ingestion of E.coli After 1. Illness usually lasts 5-10 days 2. Most people recover w/out antibiotics 3. Should NOT use anti-diarrhea Should medications. medications. WHY? - keeps BAC in body & allows BAC to keeps grow in warm, moist, conditions (& the BAC has lots of nutrients!) so it GROWS! Prevention Prevention 1. Cook all meat well Keep raw meats a. Use meat a. separate from readyseparate thermometer thermometer to-eat foods (salads, to-eat b. Thickest part of b. breads etc.) breads meat should be 3. Wash hands, counter Wash - 160° - beef 160° & utensils with hot, - 170° - poultry soapy water after c. If you don’t have a c. touching raw meat. touching meat thermometer, 4. Never place cooked Never cut into center of meat on the same meat & make sure it plate that held raw is NOT pink! is meat. meat. 2. 2. Prevention (continued) Prevention . Drink only Drink pasteurized milk and juice. - Products that have been pasteurized… pasteurized… a. Will say a. “pasteurized” on the label the b. May be sold at b. room temperature room 6. Wash fruits & Wash vegetables well (dry with paper towel). towel). 7. Wash hands after Wash using restroom or changing diapers to reduce risk of spreading infection. infection. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching. ...
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This note was uploaded on 11/23/2011 for the course BIO 100 taught by Professor Robinson during the Fall '08 term at BYU.

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