January 1989
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8 Reads
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46 Citations
Journal of the American Animal Hospital Association
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Publications (2)
June 1988
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544 Reads
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761 Citations
Journal of the American Veterinary Medical Association
Histologic sections and case histories from 23 dogs with proven fatal toxoplasmosis-like illness at the Angell Memorial Animal Hospital were reviewed. Toxoplasma gondii was identified in 13 dogs. A newly identified parasite, Neospora caninum, structurally distinct from T gondii, was found in 10 dogs. The newly discovered organism, belonging to a new genus and new species, formed meronts in many tissues of the dogs, especially the brain and spinal cord. Neospora caninum was located directly in the host cell cytoplasm without a parasitophorous vacuole; it divided by endodyogeny, contained more than 11 rhoptries, and did not react with the anti-T gondii serum in the immunoperoxidase test. Meningoencephalomyelitis and myositis were the main lesions associated with N caninum. Ulcerative and fistulous dermatitis was the major lesion in 1 dog.
Citations (2)
... Toxoplasma gondii infects numerous animal species and humans worldwide (Dubey, 2010), and is considered one of the leading causes of death attributed to foodborne illness and a neglected disease in USA (Jones et al., 2014). In dogs, most cases of toxoplasmosis are subclinical, although clinical disease has been sporadically reported in Australia (Pepper et al., 2019), Brazil (Moretti et al., 2006;Headley et al., 2013;Da Silva et al., 2015), Italy (Migliore et al., 2017), New Zealand (Patitucci et al., 1997) and USA (Dubey et al., 1989(Dubey et al., , 2003Rhyan and Dubey, 1992). Clinical disease usually includes neurologic, gastrointestinal, and respiratory signs. ...
- Citing Article
January 1989
Journal of the American Animal Hospital Association
... N. caninum is an intracellular protozoan closely related to Toxoplasma gondii, first discovered in 1984 by Bjerkås et al. [1]. Its formal identification is relatively recent, as it was made in 1988 by Dubey [2,3]. Natural hosts are ruminants, especially bovines, and canids, in which the parasite is pathogenic, leading to cattle abortions. ...
- Citing Article
June 1988
Journal of the American Veterinary Medical Association