Actinobacillus Flashcards
size
gram
shape
filaments?
type of pathogen and where
fermentative?
host specific?
colony description
growth media
hemolysis?
small
gram negative
coccobacillus
filaments may occur
obligate pathogen of mucosal surface
fermentative without gas
some are host specific
colonies may be sticky
some grow on macconkey
some are beta hemolytic
a lignieresii
hosts
disease
lesions
cows, sheep
wooden tongue
granulomatous lesions, granules
a pleuropneumoniae
hosts
disease
leisons
locations
host specific for pigs
pleuropneumonia
hemorrhagic lesions
only in respiratory tract, nowhere else
a suis
hosts
disease
growth media
host specific for pigs
swine neonatal septicemia, petechia and edema, pneumonia in adults
can also isolate on macconkey
a equuli subspecies equuli
hosts
growth media
disease
horses, pigs
can also isolate on macconkey
foal septicemia, aneurysms, systemic infections
a equuli subspecies haemolyticus
hosts
growth media
diseases
horses only
can also isolate on macconkey agar
foal septicemia, aneurysms, systemic infections
a actinomycetemcomitans host
humans
a capsulatus host
rabbits
a seminis host
sheep
how to isolate
need to be isolated in pure culture or predominance
why isolate in pure culutre
can be normal part of flora
a pleuropneumoniae requirements for growth
most require V factor, chocolate agar, or blood and staph streak required
a lignieresii requirements for growth
blood and CO2, granules may be present