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Food Associated Diseases
Diseases associated with food consumption
8
Microbiology
Graduate
06/07/2011

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Cards

Term
Staphylococcus aureus
Definition
Gram +, non-spore former, facultative,
-skin,nasal cavity
-tolerate high temp.
-stored food for several hours withou being properly fridge.

symptoms: fever, nausea,vomiting, diarrhea and shock, rarely lethal.

type of food: creamy food,cake pie, sandwich spreads potato salad.
Term
colstridium botulinum: botulim
Definition
gram + , obligate anaerobe,
spore contaminate canned food
improper canning and spores survive
raw honey causes botulism in infants.
heat labile: very toxic, binds to presynaptic membrane and blocks neurotransmitters

symptoms: blurred vision, nausea, vomiting, dizziness, inability to speak, breath or swallow, dry mouth, difficulty swallowing, double vision, muscle weakness.

Treatment: injection of antitoxin
botox: toxin in minute amount to treat neuro conditions.
Term
costridium perfringens
Definition
gram +, obligate anaerobes, spore former
contaminate via fecal-oral route
non-lethal enterotoxin
symptoms: profuse diarrhea, nausea, abdominal cramps.
enterotoxin can be detected in the feces.
Term
Salmonella
Definition
several different strains
Gram - , non-spore forming
can survive well in water for months.
most common sources, fecal-contaminated animal meats such as turkey, chicken, eggs.

bacteria invade intestines, cause inflammation

symptoms: diarrhea, fever, cramps, nausea, abdominal pain and vomiting

onset within 8-48 hours and can last 2-5 days. Patients shed Salmonella after recovery.
Term
Listeria monocytogenes
Definition
Gram +, able to survive adverse condition low temp , wide pH, high salt and dry condition.

associated with raw milk, cheeses, ice cream, raw vegetables

symptoms: fever,headaches,nausea, vomiting, cause abortion, meningitis.

mortality rate: 20-35%
Term
E.Coli
Definition
Gram -, non-spore forming
Found in intestinal tracks
found in raw milk, cheese, turkey, chicken, raw veg
produce verotoxin,

causes hemmorrhagic colitis: damage in the intestine and bleeding

kidney is damaged and often destroyed
death results from organ failure: effect of toxin and failure of crucial organs.
Term
Other Pathogenic e.coli
Definition
Traveler's diarrhea(ETEC) due to contamination of local public water supply.

EPEC: causes diarrheal diseases in infants and small children

EIEC: strains cause invasive disease in the colon, producing water to bloody diarrhea, common in developing countries.
Term
Campylobacter jejuni: campyolbacteriosis
Definition
aerobic, gram - , motile helical
found in intestines of cattle, sheep, dog, cat and poltry
transfer through milk,uncooked or poorly cooked poultry

contamination with as few as 10 C. jejuni cells, onset 2-5 days

symptoms: diarrhea, bloody, abdominal pain, occasional fever, and vomiting- Not lethal.
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