6/18 Flashcards
moraxella bovis
obligate pathogenic
resistant in the environment
moraxella bovis dz
pink eye
infectious bovine keratoconjunctivitis
highly infectious
mainly young animals
moraxella bovis virulence
fibriane adhesion to host eye
capsule
lps
moraxella bovis pathogenesis
specific attactchment to the conjunctival corneal epithelium
produces a toxin
destroys tissue
inflammation
if you dont do anything progressively gets worse
predisposing factors to moraxella bovis
fly* and dust* control
eye irritation
young cows
assoc bovine herpes virus 1 lowers immunity
moraxella bovis transmission
direct contact with infected animals, eye to eye
flies very important
moraxella bovis dx
immunofluorescence
moraxella bovis prevention
flies dust
no vacc
moraxella bovis tx
local AB
may use corticosteroids (caution)
put animals in dark stable no flies no dust decrease transmission to the rest of the herd
prevent ulceration
pasteurella multocida
obligate symbiotic little resistance in the environment
pasteurella multocida virulence
adhesins
capsule adhearance, escape immunity
cell with lps
iron acquisition
pasteurella multocida toxin
RTX- hemolysis, evasion of immunity
pasteurella multocida virulence
strains vary in virulence
high obligate pathogenic bovines bird rabbit
low facultative rhinitis pnuemonia
pasteurella multocida bovines
low path- bronchopnuemonia High path 50-100% mortality hemorrhagic septicemia developing countries spread by asymptomatic carriers tonsils direct contact or fleas ABS WONT WORK inactivated Vax
pasteurella multocida rabbits
snuffles, rhinitis otitis plueropnuemonia conjunctivits abcesses