Acinobacteria II Flashcards
What is corynebacterium? What is its main characteristics? What are the lesions like that it produces? Is it zoonotic?
- Non-sporing-forming
- Tissue trauma infection suppurative lesion
- Pathogenic Corynebacterium are host specific producing identifiable disease
abscess forming, catalase positive, oxidase negative
What are the colony characteristics for corynebacterium bovis, kutscheri, pseudotuberculosis, and c. renale?
Colonial characteristics:
- Corynebacterium bovis produces small, white, dry, non
- haemolytic colonies in the well of plates inoculated with a bovine milk sample.
- Corynebacterium kutscheri produces whitish colonies. Occasional isolates are haemolytic.
- Corynebacterium pseudotuberculosis has small, whitish colonies surrounded by a narrow zone of complete haemolysis, which may not be evident for up to 72 hours. After several days the colonies become dry, crumbly and cream - coloured. Intracellular pathogen. Produces phospholipase D and protease 40.
- Members of the C. renale group produce small non - haemolytic colonies after incubation for 24 hours.
What is the pathogenesis of corynebacterium? What diagnostics can be used in identification?
What can be seen occurring in each of these images? Why is the bovine with pyelonephritis arching its back?
What is Rhodococcus Equi, What was its previous name? What kind of pathogen is it? Where does it usually habitate outside of host? Within host? What is the major disease of this bacteria? What can it be grown on?
Rhodococcus equi
* Formerly called Corynebacterium equi
* Oportunistic pathogen
* Intracellular pathogen
* Inhabitant of soil and GI tract * Suppurative bronchopneumonia of foal (major disease)
* Blood and MacConkey agar
What are key features of Rhodococcus Equi? What clinical condition can be seen in each host?
How does this test work? What are each of the areas representing/ containing? What is the name of the test?
What are the clinical signs of Rhodococcus Equi infection? How can you diagnose it? How can you treat it?
What is seen in this image?
What are the key points/ characteristics of Mycobacteria?
What are additional key points about mycobacteria, the type of reaction it causes, what occurs with the disease? What must you do for animals that contract it? Is it zoonotic?
What kind of hypersensitivity reaction is surmounted via a tuberculin test?
Similarities/ Differences between species.
What are the clinical infections caused by mycoplasma.
- Tuberculosis in avian ad mammalian species
- Paratuberculosis in ruminants
- Feline leprosy
- Skin tuberculosis and bovine farcy
- Granulomatous lesions
What is the name of tuberculosis for cattle? Where in the world can you find cases? Why is eradication difficult? Can bovines be infected by other kinds of TB?
What is the epidemiology of M. Bovis?
What are the clinical signs of animals infected with M. Bovis? When are signs seen? What can kill the bacteria if it ends up in cows milk?
Bacteria killed in milk via pasteurization.
What are the potential diagnostics that can be ran to identify mycoplasma bovis? What is the number one lesion seen in this disease?
What are the control methods for mycoplasma bovis? What is the fate of animals that test positive? What kind of hypersensitivity reaction is the tuberculin test? Why is it difficult to eradicate this virus?
Type 4 hypersensitivity
What is the tuberculin test? What is its pros? What are its cons? What can it cross react with?
What are the 4 different kinds of tuberculin tests used in cattle? What are the advantages and disadvantages of each? When can/ should each one be used?
