ArticleThe Journal of eukaryotic microbiology
Sarcocystis caninum and Sarcocystis svanai n. spp. (Apicomplexa: Sarcocystidae) Associated with Severe Myositis and Hepatitis in the Domestic Dog (Canis familiaris).
Article in The Journal of eukaryotic microbiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 43 citations in OpenAlex.
- Article
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- Morphological and Molecular Identification ofAnimals : an open access journal from MDPI · 2025Article
- First molecular detection of Sarcocystis arctica (Apicomplexa: Sarcocystidae) infecting crab-eating raccoon (Procyon cancrivorus) in Brazil.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2025Article
- Identification ofVeterinary sciences · 2024Article
- Fatal hepatic sarcocystosis in three captive and one free-ranging pinniped.International journal for parasitology. Parasites and wildlife · 2023Article
- A Review of Circumpolar Arctic Marine Mammal Health-A Call to Action in a Time of Rapid Environmental Change.Pathogens (Basel, Switzerland) · 2023Review
- Meningoencephalitis caused by concurrent infection with canine distemper virus and a uniqueJournal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2023Article
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- Role of three bird species in the life cycle of twoInternational journal for parasitology. Parasites and wildlife · 2022Article
- Molecular characterization ofJournal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2022Article
- Genetic diversity of vector-borne pathogens in spotted and brown hyenas from Namibia and Tanzania relates to ecological conditions rather than host taxonomy.Parasites & vectors · 2021Article
- Molecular Identification ofFrontiers in veterinary science · 2021Article
- Molecular identification of Sarcocystis lutrae (Apicomplexa: Sarcocystidae) from the raccoon dog, Nyctereutes procyonoides, and the common raccoon, Procyon lotor, in the Czech Republic.Parasites & vectors · 2020Article
- ACVIM consensus statement on the diagnosis and treatment of chronic hepatitis in dogs.Journal of veterinary internal medicine · 2019Article
- Clinical Toxoplasmosis in Dogs and Cats: An Update.Frontiers in veterinary science · 2019Review
- First isolation of Sarcocystis caninum sarcocysts from two domestic dogs (Canis familiaris) from China.Parasitology research · 2018Article
- Identification and genetic characterization of Sarcocystis arctica and Sarcocystis lutrae in red foxes (Vulpes vulpes) from Baltic States and Spain.Parasites & vectors · 2018Article
- Morphological and molecular characterization of Sarcocystis arctica-like sarcocysts from the Arctic fox (Vulpes lagopus) from Alaska, USA.Parasitology research · 2017Article
- Prevalence of Enteric Protozoan Oocysts with Special Reference to Sarcocystis cruzi among Fecal Samples of Diarrheic Immunodeficient Patients in Iran.The Korean journal of parasitology · 2016Article
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Authors and funding
10 authors at 7 institutions in 1 country.
Funding
Abstract
There are several reports of Sarcocystis sarcocysts in muscles of dogs, but these species have not been named. Additionally, there are two reports of Sarcocystis neurona in dogs. Here, we propose two new names, Sarcocystis caninum, and Sarcocystis svanai for sarcocysts associated with clinical muscular sarcocystosis in four domestic dogs (Canis familiaris), one each from Montana and Colorado in the USA, and two from British Columbia, Canada. Only the sarcocyst stage was identified. Most of the sarcocysts identified were S. caninum. Sarcocysts were studied using light microscopy, transmission electron microscopy (TEM), and polymerase chain reaction. Based on collective results two new species, S. caninum and S. svanai were designated. Sarcocystis caninum and S. svanai were structurally distinct. Sarcocystis caninum sarcocysts were up to 1.2 mm long and up to 75 μm wide. By light microscopy, the sarcocyst wall was relatively thin and smooth. By TEM, the sarcocyst wall was "type 9", 1-2 μm thick, and contained villar protrusions that lacked microtubules. Bradyzoites in sections were 7-9 μm long. Sarcocysts of S. svanai were few and were identified by TEM. Sarcocystis svanai sarcocysts were "type 1", thin walled (< 0.5 μm), and the wall lacked villar protrusions but had tiny blebs that did not invaginate. DNA was extracted either from infected frozen muscle biopsies or formalin-fixed paraffin-embedded sections. Dogs were either singly infected with S. caninum or multiply co-infected with S. caninum and S. svanai (the result of a mixed infection) based on multilocus DNA sequencing and morphology. BLASTn analysis established that the sarcocysts identified in these dogs were similar to, but not identical to Sarcocystis canis or Sarcocystis arctosi, parasites found to infect polar bears (Ursus maritimus) or brown bears (Ursus arctosi), respectively. However, the S. caninum sequence showed 100% identify over the 18S rRNA region sequenced to that of S. arctica, a parasite known to infect Arctic foxes (Vulpes lagopus).
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