Lab 4- Rhodococcus Flashcards
1
Q
Habitat
A
Soil, plant, gut (horse)
2
Q
Morphology
A
Coccus-rod cycle
Capsule
3
Q
Staining
A
Gram positive
Some are acid-fast
4
Q
Culture
A
Simple: nutrient agar, broth
Pigment (pink)
Capsule
5
Q
Pathogenicity
A
INTRACELLULAR!
Foal pneumonia
Horse gut
Mesenteric lymph nodes, abscesses (cattle, swine)
Human pneumonia (immunosuppression, AIDS)
6
Q
Species ?
A
R. Equi
7
Q
Culture (Ana-aerobe?)
A
Obligate aerobe
8
Q
CAMP test results?
A
Positive
9
Q
OF test results?
A
Negative
10
Q
How many serotypes ?
A
10
11
Q
What is special about Rhodococcus and foals ?
A
Cause foal pneumonia
1-4 months old foals (big abscesses in lungs)
Ulcerative enteretitis, arthritis
From dust inhalation!!
12
Q
What type of colonies can produce pigment?
A
S-type colonies
Mucoid colonies
