Food borne diseases and parasites Flashcards
What is infection?
Ingestion of food containing live bacteria which establish in the intestinal tract
What is intoxication?
Ingesting food that contains toxins formed by bacteria
What is toxin-mediated infection?
Bacteria produce toxins in intestinal tract
Why is there under reporting of food borne illnesses?
Nature of symptoms and identification of illness
What are the 6 main food borne pathogens?
Campylobacter
Listeria
E coli O157
Salmonella
Clostridium perfringens
Foodborne viruses
What are some other food borne pathogens?
Clostridium botulinum
Staphylococcus aureus
E. coli other than O157
Bacillus cereus
How can spores be destroyed?
121C for 15 minutes
What type of bacteria is most heat sensitive?
Gram negative
What does pasteurisation at 72C for 15s kill?
All gram negative and most gram positive
What are enteric organisms?
Organisms in the intestine of warm blooded animals
What are the enteric organisms?
Salmonella
E. coli
Campylobacter
Where is staph aureus found?
Warm-blooded animals
Where are vibrio and clostridium botulinum found?
Marine and coastal waters
Where are clostridium and bacillus found?
Soils, water and vegetation
What is a facultative anaerobe?
Doesn’t require O2 but prefers to use it
