title: Eimeria leuckarti infection in foals.
abstract: This is the first report on Eimeria leuckarti infection in foals in Japan. Seven Thoroughbred or Angloarabian foals 2 to 7 months of age raised in the Hidaka district, Hokkaido, were infected with E. leuckarti. They died of severe alterations caused by the larval migration of Strongylus vulgaris, and were examined over a period from 1970 to 1973. Protozoa of this species were observed in the small intestine in all the foals. They were found mostly in vacuoles of the cytoplasm of monoclear cells in the lamina propria at or near the tip of villi. Various stages of gametocytes, oocysts, and microgametocytes were found. In infected cells the nucleus was markedly enlarged, but the cellular response was very slight to the parasite.
mesh_terms: D000818:Animals; D003048:Coccidiosis / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000469:parasitology / Q000473:pathology; D006736:Horses; D007421:Intestine, Small / Q000469:parasitology / Q000473:pathology; D008297:Male; D013319:Strongyle Infections, Equine / Q000473:pathology