Isospora Gallinae

Host: Chicken.

Location: Unknown. Oocysts found in feces.

Geographic Distribution: Europe.

Prevalence: Unknown, presumably rare.

Morphology: The oocysts are ellipsoidal, 19 to 27 by 15 to 23 u with a mode of 24 by 19 u. A micropyle is absent. Oocyst polar granules are present. An oocyst residuum is absent. The sporocysts are piriform.

Life Cycle: Unknown.

Pathogenesis: Unknown.

Remarks: The validity of this species is dubious. It is more likely a parasite of some wild bird, such as I. lacazei of the English sparrow.