Mycobacteria Flashcards
1
Q
What are the most common mycobacteria
A
M.tuberculosis
M.bovis
M.avium
2
Q
What pathogen causes Johne’s disease?
A
Mycobacterium avium subspecies paratuberculosis
3
Q
How long do mycobacteria take to grow?
A
2-16weeks
very slow
4
Q
What are the clinical signs/characteristics of Johne’s diseases
A
Weight loss
Diarrhoea
Reduced milk production
Worsened body condition
Bottle jaw (fluid accumulation in submandibular region)
Lethargy
Decreased fertility
5
Q
How do mycobacteria invade?
A
Attach to integrins on surface of M cells on Peyer’s patch
Invade and reside in macrophages
Cause a granulomatous response
