Toxoplasma gondii-like schizonts in the tracheal epithelium of a cat.
Toxoplasma gondii-like schizonts were found in tracheal epithelium of an 8-yr-old male cat. The parasites were located in parasitophorous vacuoles within the host cell cytoplasm, divided by schizogony, contained periodic acid-Schiff-positive granules, and reacted with anti-T. gondii serum but not with anti-Neospora caninum serum. Mature schizonts were 7.0 x 5.9 microns (5-10 x 4-10 microns; n = 22) and contained 4-16 merozoites. The merozoites were approximately 5 x 1 microns.
Zoonotic Diseases Laboratory, Livestock and Poultry Sciences Institute, ARS, USDA, Beltsville, Maryland 20705-2350.
J P
JP
Dubey
J L
JL
Carpenter
D000818:Animals; D002371:Cat Diseases / Q000469:parasitology*; D002415:Cats; D004848:Epithelium / Q000469:parasitology / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D014122:Toxoplasma / Q000302:isolation & purification* / Q000648:ultrastructure; D014124:Toxoplasmosis, Animal / Q000469:parasitology*; D014132:Trachea / Q000469:parasitology* / Q000648:ultrastructure