quiz3
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| Diarrhea in neonates. K88: swine; K99: cattle | Enterotoxic E. coli
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| Do not invade tissue; heat labile or stable; exotoxins are absorbed => more cAMP => more water and Cl- secretion | ETEC
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| cause septicemia and bacteremia in neonatal animals. | enteroinvasive E. coli (EIEC
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| Penetrate epithelium, endotoxins cause damage. | Enteroinvasive E. coli
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| Edema disease in pigs. O157:H7 in greyhounds and humans (Hemolytic uremia) | Enterohemorrhagic E. coli
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| Attach to microvilli and cause effacement or destruction; NOT invasive. (NO enterotoxins) | Enteropathogenic E. coli
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| a short gram-negative rod with petritrouchous flagella. | Escherichia coli
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| It is motile and non spore-forming and ferments lactose and glucose. | Escherichia coli
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| gives E. coli a metallic green appearance. | EMB agar
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| Somatic/Lipopolysaccharide | O
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| Flagella | H
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| Capsular | K
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| Pili/Fimbrae | F
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| almost always associated with pigs. | K88 (also called F4) and 987p (also called F6)
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| Diarrhea in calves is often caused by | K99
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| All enterotoxins are | exotoxins.
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| The virulence factors of enterotoxic E. coli are | exotoxins and pili antigens
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| The exotoxins are absorbed into | the epithelial cells.
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| cause effacement or degeneration of microvili without entering the cell. | Enteropathogenic E.
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| cause septicemia and bacteremia in neonatal animals. | enteroinvasive E. coli
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| Acute colisepticemia usually does NOT cause | diarrhea or fever
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| Bovine mastitis caused by E. coli rapidly reduces | milk production
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| causes 70% of pyometra cases in bitches. | Escherichia coli
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| Pigs are quite susceptible to what until they are about 14 weeks old. | E coli
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| Post-weaning colibacillosis in pigs is almost always caused by | K88
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| Edema disease in pigs is caused by | EHEC or VTEC
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| The symptoms are muscle tremors, staggering gait, facial edema (especially eyelids) and posterior paralysis before death. | Edema disease
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| Birds of any age can get acute septicemia caused by. | E coli
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| Arthritis may develop in poultry after | septicemic infection
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| can cause E. coli poisoning in humans. | Raw hamburgers
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| Hemolytic uremia syndrome in humans is caused by | O157:H7
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| Greyhounds can get “Alabama rot” which is caused by | E. coli O:157:H7
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| Bacteremia in humans is occasionally caused by | Enterobacter cloacae
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| Mastitis can be caused by | Enterobacter aerogenes
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| is normally found in the soil | Citrobacter
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| has a large capsule, is not hemolytic and can cause mastitis in cattle, cervicitis and metritis in mares, and urinary tract infections. | Klebsiella
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| does not ferment lactose, is highly motile and non-hemolytic | Proteus
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| frequently causes urinary tract infections in cats and dogs. | Proteus
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| causes bubonic plague. | Yersenia pestus
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| Salmonella Typhiurium | No host preference
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| Salmonella Choleraesuis | pigs
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| Salmonella Pullorum | poultry
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| Salmonella Gallinarum | poultry
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| Salmonella Enteritidis | No host preference
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| Salmonella Dublin | cattle and humans
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| Salmonella Typhi | Humans
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| describes salmonella infections caused by non-host-adapted serotypes. | Paratyphoid
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| of flagellar antigen is referred to as | H-O variation
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| The differences in capsule thickness (quantitative antigenic changes involving Vi antigens) are called | V-W variants
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| A strain changes from smooth to rough (S-R variation) when the is gradually lost to expose the core polysaccharide. | O antigen
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| is destroyed by boiling. | flagellar antigen
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| Typhoid fever is caused by | human-adapted serovar
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| are non-motile and paratyphoids are motile | Pullorum and Gallinarum
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| causes bacillary white diarrhea in poultry | Salmonella Pullorum
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| Fowl typhoid is caused by | Salmonella Gallinarum
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| Organism identification is the only way to distinguish fowl typhoid from | pullorum
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| produces green diarrhea and the wattles and combs have a purple discoloration. | Fowl typhoid
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| is usually caused by Salmonella Dublin and Salmonella Typhimurium | Bovine salmonellosis
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| Calves 2-6 weeks are most susceptible | Salmonella Typhimurium
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| is more likely to produce the carrier state in cattle | Salmonella Dublin
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| Cattle with what have fever, diarrhea (brown or green, sometimes bloody) and sometimes get arthritis, pneumonia, or encephalitis. | salmonellosis
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| is the most common serovar in pigs. | Salmonella Choleraesuis
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| are often carriers of salmonella | Turtles
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