L10

Question 1

What type of culture would you request from a lesion like this in a dog?

A. Aerobic culture
B. Anaerobic culture
C. Aerobic and anaerobic culture

Answer 1

C. Aerobic and anaerobic culture

Note: This type of lesion could be caused by actinomycin or nocardia

Question 2

Which of the following feature help in the identification of Dermatophilus congolensis infection in cattle?

A. Scabby lesion
B. Presence of Gram + coccobacilli in the smear
C. Tram track appearance of the organism in the stained smears of scabs
D. Presence of Gram variable filamentous bacteria in the smear

Answer 2

C. Tram track appearance of the organism in the stained smears of scabs

Note: Very unique to this species; you don’t even have to send for a culture when you see this.

Question 3

Trueperella pyogenes is a common bacterial isolate from pyogenic lestions of internal organs in cattle

T or F ?

Answer 3

True

Note: Very common organism causing abscesses in cattle. Endogenous infection, organism is present in the body (rumen) of the animal. Causes abscesses in the organs

Question 4

Which of the following agent disease pair is incorrect?

A. Actinobaculum suis - pyelonephritis in swine
B. Corynebacterium bovis - pyelonephritis in cattle
C. Actinomyces bovis - Lumpy Jaw in cattle
D. Dermatophilus congolensis - Rain Scald in horses

Answer 4

B. Corynebacterium bovis - pyelonephritis in cattle

Note: B. Corynebacterium renale - pyelonephritis in cattle.
Corynebacterium bovis - causes skin lesion in lab mice