Enterics/Anaerobes I Flashcards
Antiphagocytic capsule
B. fragilis
GI anaerobic abscesses
B. fragilis
Clostridium
Only G+ spore formers
Clostridium
Vaccine = formalin inactivated toxin
Clostridium tetani
A1 fragment ADP-ribosylates GTP binding protein (which incr CFTR, causing osmotic diarrhea)
V cholera
V Parahaemolyticus
Black tar heroine users
Clostridium botulinum
Rho-family GTPase rearranges actin + stress fibers
Clostridium diff
Associated w/ poor sanitation
V cholera
V Parahaemolyticus
Only anaerobic endospore formers
Clostridium
Disease due to exotoxins and hydrolytic enzymes
Clostridium
Abrupt + severe diarrhea + dehydration
V cholera
V Parahaemolyticus
Acute mesenteric lynphadenitis
Yersinia enterocolitica
Fe-sequestering
V vulnificus
Descending flaccid paralysis
Clostridium botulinum
Swarming on motility test
Proteus
Curved, G-, oxidase +
V cholera V Parahaemolyticus
Aggressive abx: clinda, erythromycin, metronidazole
B. fragilis
Toxin B = kills colon cells
Clostridium diff
“boxcar” bacili
Clostridium perfringens
severe watery diarrhea
V. cholera
KIA Slant = yellow w/ gas
lactose fermented (E. coli, Klebsiella, Enterobacter)
G+ tennis rackets/lollipops
Clostridium tetani
Exotoxin mediated = abx don’t work
Clostridium tetani
lockjaw + risus sardonicus 1-2wks post exposure
Clostridium tetani
Dysentery
Shigella
Non-invasive toxin
V cholera V Parahaemolyticus
Tryptophan –> Indole
Shigella (negative = Salmonella)
Wound inf in fishermen
V vulnificus
KIA Slant = Black w/ gas
glu fermented, H2S formed (Salmonella, Proteus)
Motile w/ polar flagella
V cholera
V Parahaemolyticus
Raw meat/milk with human-human transmission
Campylobacter jejuni Campylobacter fetus
Non-inflmm watery diarrhea for 8-12h (no fever, no vomiting)
Clostridium perfringens
“Sea gull” appearance
Campylobacter jejuni Campylobacter fetus
Incr risk if vit K deficiency (liver disease)
V vulnificus