Bacteriology TA session Feb 16th 2016 Flashcards
Which of the following is mismatched?
A. E. coli: lactose positive
B. E.coli: oxidase negative
C. E. albertii: major pathogen in sheep
D. E.coli: motile rods
C. . E. albertii: major pathogen in sheep
In regards to serotyping, which of the following is correctly paired?
A. H: Fimbriae
B. F: flagella
C. C: capsule
D. O: antigen
D. O: antigen
Shigella species are pathogenic to animals? T/F
False
Which of the following is not a possible virulence factor for E. coli? A. Endotoxin B. Spore formation C. Non-fimbrial adhesins D. Enterotoxins
B. Spore formation
Which of the following is not matched correctly?
A. ETEC: enterotoxigenic Ecoli
B. EHEC: enterohemorrhagic E. coli
C. VTEC: verotoxigenic E.coli
D. RPEC: really pathogenic E. coli
D. RPEC: really pathogenic E. coli
Which of the following types of E. coli is not problematic in pigs?
A. ETEC
B. VTEC
C. MMA
D. EHEC
D. EHEC
Which of the following is not common in cattle in regards to E. coli? A. ETEC B. EPEC C. VTEC D. Septicemia
o C. VTEC
Entertoxins for piglets with ETEC are located in genetic material in?
A. Single circular chromosome
B. Plasmids
B.Plasmids
Which of the following is false in regards to the LT toxin in ETEC? A. Strong Antigen B. High molecular weight C. Activation of adenylate cyclase D. Weak antigen
D. Weak antigen
Which of the following is mismatched?
A. STa: Heat labile
B. STb: Heat stable
C. STa Stb EAST1: Low molecular weight
D. STa Stb EAST1: Poor antigenic quality
A. STa: Heat labile
ETEC infection colonizes where? A. Stomach B. Small Intestine C. Cecum D. Large intestine
B. Small Intestine
VTEC has an exotoxin? T/F?
True
You are called to investigate disease in a pig farm. Biopsy showed no microbial organisms. What is your top differential for the cause of swollen eyes in a pig?
A. Staphylococcus hyicus
B. Steptococcus porcinus
C. VTEC
D. ETEC
C. VTEC
Which of the following signs or symptoms will you not see with VTEC infection in pigs?
A. CNS symptoms
B. Edema
C. Hoarse voice
D. Laryngitis
D. Laryngitis
Which E. coli disease uses the T3SS needle to inject effector proteins into host cells? Though rare, this disease can cause diarrhea at weaning which E. coli do you suspect?
A. ETEC
B. VTEC
C. EHEC
D. EPEC
D. EPEC
What is the most important pathogen that causes UTI in pigs?
A. Salmonella enterica
B. Staphylococcus aureus
C. E. coli
D. Streptococcus Porcinus
C. E. coli
Septicemia (caused by E. coli) in pigs is usually secondary to enteric infection? T/F?
True
Which of the following is not associated with E. coli infection in cattle? A. ETEC B. EPEC C. Septicemia D. MMA
D. MMA
You are called to a ranch to figure out why calves have watery diarrhea in the first 3 days of life. Which of the following is your top differential?
A. ETEC
B. EPEC
C. VTEC
D. EHEC
ETEC
Septicemia in neonatal calves is usually due to? (E. coli)
A. Failure to vaccinate the calf
B. Failure to feed prophylactic antimicrobials
C. Failure of passive transfer
D. Failure to feed adequate vitamins
C. Failure of passive transfer
ETEC (in bovine) has all of the following virulence factors except? A. F5 B. STa C. STb D. LT
D. LT
Mastitis caused by E. coli in cows usually results in loss of only affected udder quarter? T/F?
True
Between cats and dogs, which one is more likely to have Cystitis caused by E. coli?
A. Dogs
B. Cats
A. Dogs
Which is one the most important bacterial diseases in broilers and layers? A. Staphylococcus aureus B. E. coli C. Salmonella Enteriditis D. Clostridium piliforme
B. E. coli
Which of the following is not associated with E. coli disease in poultry and other birds?
A. Neonatal colibacillosis
B. Respiratory colibacillosis
C. Peritonitis
D. encephalitis
D. Encephalitis
