Lab Anim Res.  2011 Dec;27(4):357-359. 10.5625/lar.2011.27.4.357.

Detection of sarcocystic infection in a wild rodent (Apodemus agrarius chejuensis) captured on Jeju island

  • 1Department of Laboratory Animal Medicine, College of Veterinary Medicine, Seoul National University, Seoul, Korea.
  • 2Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea.
  • 3Department of Biochemistry, College of Medicine, Konyang University, Daejeon, Korea.
  • 4Department of Science Education, Jeju National University, Jeju, Korea.
  • 5College of Veterinary Medicine, Kangwon National University, Chuncheon, Korea.
  • 6Biological Resources Coordination Division, National Institute of Biological Resources, Incheon, Korea.
  • 7Biosafety Research Team, Environmental Health Research Department, National Institute of Environmental Research, Incheon, Korea.


Sarcocystis spp is a causative agent of sarcocystosis. They have a characteristic life cycle infecting both prey and predator. Sarcocystis can cause myositis, atrophy of the adjacent cells and abortion in cattle. In mice, sarcocystosis causes mild cellular reactions without clinical disease. Severe haemorrhage and abortion were also reported. For monitoring the disease in wild rodents of the Korean peninsula, we captured Apodemus agrarius chejuensis on Jeju island and examined the specimen histopathologically. Intramuscular cysts were found and diagnosed as Sarcocystis. Sarcocystic infection has been reported in worldwide. There have been many reported infections in cattle and pigs in Korea. To our knowledge, this is the first report of Sarcocystis in Apodemus agrarius chejuensis captured in Korea.


Sarcocystis; Apodemus agrarius chejuensis; Jeju island
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