Ovine sporozoan encephalomyelitis linked to Sarcocystis infection

The unidentified sporozoan causing encephalomyelitis in sheep described by Hartley and Blakemore (1974) was restudied, and the parasite was identified as a Sarcocystis species based on its location and structure. The parasite was located free in the host-cell cytoplasm, divided by endopolygeny and mature merozoites lacked rhoptries.     

Der methodische Fortschritt der Wissenschaft und die daraus resultierenden Anforderungen an die forstwissenschaftliche Forschung in unserer Zeit

Ohne ZusammenfassungVortrag, gehalten am 26. Oktober 1966 bei der Forstwissenschaftlichen Hochschultagung in München.     

Acute sarcocystosis-like disease in a dog

Two of 8 littermate Rottweiler dogs developed persistent diarrhea at 6.5 weeks of age. Dog 1 was euthanatized at 14 weeks of age and had hepatitis characterized by necrosis and mixed leukocyte infiltrations in association with a previously unrecognized Sarcocystis-like protozoon. The organism was free in the hepatocyte cytoplasm without a parasitophorous vacuole, had divided by schizogony, and stained with anti-Sarcocystis serum, but did not stain with anti-Toxoplasma gondii or anti-Neospora caninum serum in an immunohistochemical test. Dog 2 was euthanatized at 10 weeks of age. This dog had large necrotic, hemorrhagic mesenteric lymph nodes. Numerous T gondii tachyzoites were observed in association with these lesions. The organism divided by endodyogeny and stained specifically with anti-T gondii serum.