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