2/1 Buxton Gastroenteritis Flashcards
(28 cards)
1 anaerobe normal enteric flora
bacteroids fragilis
1 facultative normal enteric flora
E. COli
Types of microbial toxins
3
neurotoxins
enterotoxins
cytotoxins
Neurotoxins are usually ingested at what state?
Preformed toxins
Bacteria that use neurotoxins
3
S. Aureus
Bacillus cereus
C. botulinum
Enterotoxins effect?
Direct effect on intestinal mucosa to cause fluid secretion (and electrolytes)
Bacteria that use enterotoxins
6
Vibrio Cholerae
Cytotoxins effect
3
Mucosal destruction in colon
Inflammatory colitis
Called dysentery
Bacteria that use Cytotoxins
Shigella dysenteriae
Bacteria that use the virulence factor of attachment
4
E. coli
Giardia lambila
Cryptosporidium
Isospora
Virulence factor attachment def
Destroy the ability of cells to participate in secretion and absorption
Microbial virulence factor invasiveness def
Capacity of organisms to invade and destroy epithelial cells in colon causing inflammatory diarrhea
Bacteria that use microbial virulence factor invasiveness
Shigella
what are the two leading causes of bacterial food borne disease in US
Campylobacter jejune
salmonella
Where would I catch S. aureus
Meat
Milk
Where would I catch C. perfringes
meat
soil
Where would I catch salmonella
chicken eggs meat milk produce
Where would I catch shigella
produce
direct fecal - oral
Where would I catch campylobacter
water
raw milk
chicken
pets
Where would I catch Vibrio parahaemolyticus
raw seafood
Where would I catch Bacillus cerus
rice
meat
vegetables
Where would I catch aeromonas hydrophilia
water
Where would I catch vibrio cholera
water
Where would I catch E. coli
beef
raw milk
produce
