Robert G. Leek

TL;DR: Findings provide circumstantial evidence that oocysts of Cryptosporidium can excyst in extraintestinal sites and liberate sporozoites that can initiate autoinfection.

TL;DR: Coccidial schizonts were found in enlarged mesenteric lymph nodes of sheep and goats that, 13 to 18 days previously, had been fed sporulated oocysts of Eimeria arloingi, E. faurei, and E. ninaekohlyakimovi of ovine origin during investigations of the behavior of sheep coccidia in goats.

TL;DR: Infected, medicated lambs developed a protective immunity as determined by challenge inoculation, and salinomycin at both doses tested reduced the number of deaths and severity of signs of sarcocystosis in infected lambs as compared with unmedicated controls.

TL;DR: Merozoites were found in blood smears from calves, lambs, and pigs exhibiting signs of acute sarcocystosis after oral infection with sporocysts of Sarcocystis bovicanis, S. ovicanIS, and S. suihominis, indicating that the virus had been transmitted between intermediate hosts of the same species by blood transfusion.