Etiology: Klossiella muris is a coccidian of mice.
Incidence: Incidence of infection is rare.
Transmission: Transmission occurs via ingestion of sporulated oocysts that have been passed in the urine.
Distribution: Klosiella muris is found in the kidney [seen at 20X (photo on left), and 40X (photo on right)].
Clinical signs: Clinical signs are not usually observed.
Diagnosis: Diagnosis is made by histopathologic examination of kidney. Intracellular organisms can be observed within the cells of the renal tubular epithelium.