Sarcocystis Flashcards
Only sexual reproduction occurs
on the definitive host and that
sporogony is completed there
sarcocystis
Fully sporulated oocysts and sporocysts are discharged in the host’s feces
sarcocystis
infective stage with the production of sporocysts occurs in what area of definitive host
intestinal mucosa
2 types of Sarcocystis
intestinal, muscle
toxin secreted by the sarcocyst in the intermediate host
sarcocystin
sarcosporidiosis in sheep agents
S. ovicanis, S. arieticanis
sarcosporidiosis in goats agents
S. capracanis. S. hircicanis
Associated with release of 2nd
wave of merozoites
Sarcosporidiosis in Pigs
Causes a severe neurological disease in
horses, Equine Protozoal Encephalomyelitis (EPM)
Sarcocystis neurona
predilection site of Besnoitia sp.
CT of the skin
Definitive host of besnoitia
cat
IH of besnoitia
Horses, ruminants, rodents, lizards
endemic in tropical and sub-tropical
regions with high infection rate but low mortality and rare elsewhere
Besnoitiosis
etiologic agent of cutaneous form of besnoitiosis in horses and burros
Besnoitia bennetti
hardening of the skin creating a
leathery affect which is a symptom of Besnoitiosis
Lichenification of the muzzle