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Morphology of Enterobacteriacea
G- Rods
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Enterobacteriacea are cultured on:
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On Mac, ____ Enterobacteriacea colonies are pink, while ____Enterobacteriacea colonies have no color
- Lactose Fermenting
- NON-Lactose Fermenting
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E coli are stereotyped to determine...
pathogenic strains
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O157 H7 =
Strain of E coli that -> Homorrhagic Colitis in humans
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E coli in pigs causes (4):
- Porcine Neonatal Diarrhea (<5day)
- Porcine Post-weaning Diarrhea
- Edema Disease (all)
- Coliform Mastitis, gangrenous (sow)
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E coli in humans causes (2):
- Hemorrhagic Colitis
- Hemolytic Uremic
- (Hamburger Dz)
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E coli in chickenscauses(1):
Colibacillosis (Respiratory Dz, inhaled)
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E coli in lambs causes:
Water Mouth
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E coli in dogs causes (2):
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E coli in cats causes(1):
pyometra
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Ecoli in cattle causes (4):
- White Scours (calves)
- Hemorrhagic Colitis (rare)
- Metritis (cow)
- Coliform Mastitis (cow
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E coli in horse causes(2):
- Metritis(mare)
- Septicemia (foal)
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E coli Virulence factors (6):
- Capsule
- Pili/Fimbriae
- Hemolysin
- Endotoxin
- Enterotoxin
- Shiga Toxin
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Symptoms of E coli endotoxin
- Fever
- Intravascular Clotting
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What all E coli to colonize?
K88 (pili)
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Enterotoxins directly cause...
fluid secretion
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How can E coli cause heart failure?
Enterotoxin -> loss of fluids/electrolytes
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How can E coli cause Renal damage?
Damage to renal arteries
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E coli virulence factor -> Edama Dz?
Shiga Toxin
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Which E coli virulence factors -> ballooning of intestines
- Pili (attachment)
- Entero toxin released
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Edematous swelling in the eyelid of a pig could be caused by....(specific toxin)?
E coli, Shiga toxin
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Colisepticemia/colibacillosis, in a calf, may be caused by...?
E coli
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Coliform Mastitis is caused by.... (specific toxin)
E coli, Endotoxin
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Symptoms of Coliform Mastitis (4):
- Hemorrhage
- Edema
- Fever
- Off Feed
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Dx for diarrhea caused by E coli:
- Culture feces
- Slide agglutination
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Dx for UTI caused by E coli:
Quantitive Culture
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Tx for diarrhea caused by E coli:
- Fluid
- Electrolytes
- Antibiotics, PO
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Tx for Septicemia caused by E coli:
Antibiotics, IV
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Tx for Mastitis caused by E coli:
Antibiotics, locally
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J5 Vx can prevent...
Endotoxemia
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E coli Vx can be given to:
- Cattle- cow lessen endotoxin in calf
- Pigs
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Prevention of E coli infections (4):
- Vx Dam (cattle and pigs)
- Colostrum for neonates
- Hygiene
- Vx cows to reduce severity of endotoxin in calf
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Klebsiella is +/- Lactose fermenting?
+lactose fermenting
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What causes klebsiella to drip off the plate when inverted?
think mucoid capsule
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Klebsiella -> ____ in mares
metritis
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Klebsiella -> ____ in cows
mastitis
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Klebsiella -> ____ in dogs
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Klebsiella -> ____ in birds
Respiratory infections
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