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
pasteurella multocida pigs
atrophic rhinitis
lung pasteurellosis
aersol transmission
pasteurella multocida fowl cholera
susceptibility
duck>goose>turkey>chicken>pheasant>partridge>guinea hen
in nose and beak of healthy animals
cat bites (generally lethal to birds) GIVE AB
septicemia- acute, sub, chronic (host dependent)
contaminate drinking water and feed (excretion nose and mouth)
mainly in adult
pasteurella multocida chickens
chronic sneezing nose excretions edema on head
cat bites: always hyperacute
pasteurella multocida cats and dogs
wound inf. (carry in mouth) if they lick their wounds
BITING WOUNDS
less virulent serotypes in the nose and tonsils
biting wounds by cats and dogs
pastueurella
neisseria
capnocytophaga
bartonella henselae
local symptoms
regional lymphnodes
bacteremia and tissue localization (liver)
mannheimia hemolytica
obligate symbiotic
capsule types a-f
low environmental resistance
mannheimia hemolytica virulence
leukotoxin RTX family (only effective against leukocyes of bovine and shep) transferrin binding proteins endotoxin capsule fimbriae
mannheimia hemolyticaruminants
pnuemonia
sheep suscept to all serotypes can frequently find in the nose. little antimicrobial resistance
bovines
seldom found in nose
mannheimia hemolytica calves
multifactorial dz (bact, viral)
grouping calves together
broncho pneumonia
