Moraxella spp. Flashcards
1
Q
specifics
A
gram -ve pleomorphic rods
non motile
catalase and oxidase positive
obligate symbiotic, obligate pathogenic, resistant in environment
2
Q
M. bovis CS
A
pink eye - infectious keratoconjunctivitis (bovine)
highly infectious
young animals
3
Q
M. bovis
A
pathogenesis- attachment to eye –> toxin prod (tissue destruction)–> growth/more toxin (further damage)–> increase susceptibility –> irreversible eye damage
predisposing factor- young, eye irritation,herpes
transmission- direct contact with inf animal, flies
4
Q
M. bovoculi
A
keratoconjunctivitis in bovine
5
Q
M. ovis
A
kertaoconjunctivitis and pneumonia in ovine
6
Q
virulence factors M. bovis
A
cytotoxin, pore forming toxin
fimbrae, capsule, LPS
