Actinobacillus suis Flashcards
hosts
swine
location
mucosal surfaces
growth
will grow on macconkey – sticky and adherent
hemolysis?
yes hemolytic
disease in piglets 1-8 weeks old
bacteremia
disease
endocarditis
pericarditis
edema
petechiae throughout organs
symptoms
febrile
respiratory distress
neurologic symptoms
death
disease in older pigs
lesions more localized
associated with stress
source
dissemination results
source likely upper respiratory tract
dissemination results in vascular hemorrhage and necrosis
virulence
RTX toxin
capsule
LPS
adhesins
trasnmission
carried in respiratory tract and tonsils of healthy and infected pigs
via respiratory tract when pigs are very young
what predisposes older pigs
stress
previous infection
immunity
passive protection of piglets from colostrum
antibodies to RTX toxins
vaccination
not common
live attenuated should work best – but not available
treatment
antibiotics if diagnose early
confirm with susceptibility test
