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This study describes the sequential formation of lesions associated with the endogenous development of Sarcocystis rauschorum (Apicomplexa: Sarcocystidae) in varying lemmings, Dicrostonyx richardsoni. Lethal doses of sporocysts (greater than 500) were orally administered to lemmings examined 1-6 days postinoculation (DPI) whereas sublethal doses were administered to lemmings examined subsequently. Transient necrosis and purulent inflammation, in association with precystic merogony, occurred in the liver by 4.5 DPI, peaked at 6 DPI and subsided beginning at 11 DPI with the liver returning to normal by 15 DPI. Cyst formation in skeletal and cardiac muscle was associated with purulent inflammation and sarcolemmal proliferation beginning at 9 DPI. These lesions persisted to 42 DPI. In addition, multifocal nonsuppurative meningoencephalitis was present in six of 11 infected lemmings examined between 11 and 15 DPI.
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
June 1989,
The Journal of parasitology,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
April 1987,
The Journal of parasitology,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
January 2005,
Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
January 1994,
Zhurnal obshchei biologii,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
September 1996,
Veterinary parasitology,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
April 1983,
Canadian journal of comparative medicine : Revue canadienne de medecine comparee,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
June 1972,
Laboratory animal science,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
November 1984,
Veterinary parasitology,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
June 1975,
Canadian journal of zoology,
L L Stackhouse, and
R J Cawthorn, and
R J Brooks
July 1975,
American journal of veterinary research,
