Flashcards in Major Food-borne Illnesses Deck (42)
What pathogens are involved in food-borne INFECTIONS? (6)
4) Campylobacter jejuni
5) Hepatitis A
Which pathogens are spore-forming? (3)
1) Clostridium perfringens
2) Bacillus cereus
3) Clostridium botulinum
Which pathogen is often found in unpasteurized milk and cheese, ice cream, raw vegetables etc?
Listeria (food infection)
Which pathogen is often found in cooked meat, meat products and beans that have slowly been cooled?
Which pathogens are involved in food-borne INTOXICATION? (3)
1) Staphylococcus aureus
2) Bacillus cereus (emetic)
3) Clostridium botulinum
What pathogens are involved in food-borne TOXIN-MEDIATED Infections? (3)
1) Clostridium perfringes
3) Bacillus cerues (diarrheal)
Which pathogen has produces two different toxins?
-Diarrheal (toxin-mediated infection)
In the emetic toxin formed by B. cereus, what foods are likely to be involved?
Rice products, starchy foods, sauces, puddings, soups, casseroles, pastries and salads
In the diarrheal toxin formed by B. cereus, what foods are likely to be involved?
Meats, milk, vegetables and soups
What toxin is in involved food such as improperly processed canned foods, low acid food, garlic-in-oil products, grilled and sautéed onions in butter?
What foods are the Hepatitis A virus involved in?
Uncooked foods and produce such as green onions, lettuce, carrots, salads and sandwiches, glazed or iced baked goods.
______ involves food such as salads, lettuce, raw vegetables and dairy products
Shigella (food infection)
Raw shell fish, raw vegetables, prepared salads and water contaminated with human feces is a risk factor for contamination with the _____, causing a food-borne infection.
What is the pathogen with the shortest incubation period? What are the symptoms?
S. aureus (Intoxication)
Rapid incubation period
-Nausea, vomiting, abdominal cramps, changed in BP
What pathogen has the longest incubation period? What are the symptoms?
Hepatitis A (15-50 days)
-Fever, loss of appetite, vomiting, diarrhea
What is the incubation period of the emetic toxin of b.cereus? diarrheal toxin?
Emetic: 1 to 2-6 hours
Diarrheal: 6-15 hours
Which virus will remain for up to two weeks even if symptoms subside?
Norwalk and the Norwalk-like viral agent
(From the Norovirus diesease)
Which diseases cause indefinited illnesses?
(T/F) Although the duration of illness for c.jejuni and heaptitis A ranges from 7-10 days and several weeks/months (respectively) - relapses or not common
Which pathogens cause watery/bloody diarrhea?
Compare and contrast the symptoms of emetic and diarrheal toxins of b.cereus
Emetic: Nausea, occasional vomiting, occasional abdominal cramps and/or diarrhea
Diarrheal: Watery diarrhea, abdominal cramps, pain and nausea
What causes lassitude weakness, double vision, difficulty speaking and swallowing and constipation?
What causes abdominal pain, headache, nausea, vomiting, fever and diarrhea?
Which pathogen originally produces symptoms similar to salmonella (abdominal pain, headache, nausea, vomiting, fever, diarrhea) but may accelerate to meningitis?
____ days after ingesting a meal, a customer starts having symptoms such as fever, loss of appetite and jaundice. He also has dark coloured urine. What pathogen has he ingested?
Immediately after ingesting a meal, a customer starts experiencing symptoms such as a sudden drop in blood pressure, nausea, vomiting and muscle cramps. What pathogen has he ingested
Pathogens such as Salmonella, Shigella, S. aureus, C. perfringens, E. coli and Norovirus often originate from where?
Human intesinal tract
Which pathogens are more likely to be found in soil, dirt and water?
Which pathogens are most likely to be found from the intestinal tract of domestic and wild animals?
-E.coli (especiallly cattle)