| sarcocystis canis n. sp. (apicomplexa: sarcocystidae), the etiologic agent of generalized coccidiosis in dogs. | sarcocystis canis n. sp. is proposed for the protozoon associated with encephalitis, hepatitis, and generalized coccidiosis in dogs. only asexual stages are known in macrophages, neurons, dermal, and other cells of the body. the parasite is located free in the host cell cytoplasm without a parasitophorous vacuole; schizonts divide by endopolygeny. schizonts are 5-25 x 4-20 microns and contain 6-40 merozoites. merozoites are approximately 5-7 microns x 1 micron and do not contain rhoptries. the p ... | 1991 | 1907653 |
| fatal visceral and neural sarcocystosis in dogs. | this paper describes acute visceral and neural sarcocystosis in four dogs. one animal was simultaneously infected with distemper virus, and another with blastomyces dermatitidis. schizonts and merozoites of sarcocystis canis were found in the lesions. 1999 w.b. saunders and company ltd. | 1999 | 10405310 |
| hepatic sarcocystosis in a striped dolphin (stenella coeruleoalba) from the spanish mediterranean coast. | fatal hepatic sarcocystosis was diagnosed in a striped dolphin (stenella coeruleoalba) from the northeastern spanish mediterranean coast based on pathologic findings and the microscopic and ultrastructural characteristics of the intralesional parasite. main gross lesions were icterus, subcutaneous hemorrhages, and hepatic congestion. the most prominent microscopic lesions consisted of severe acute multifocal to coalescing necrotizing hepatitis with cholestasis and intralesional protozoa. there w ... | 2002 | 12053971 |
| pulmonary sarcocystosis in a puppy with canine distemper in costa rica. | canine distemper and pulmonary sarcocystosis were diagnosed in a 10-week-old rottweiler with 4-day history of diarrhea, vomiting, and weakness. microscopic examination of the lung revealed bronchointerstitial pneumonia typical of morbillivirus infection. also, numerous apicomplexan parasites were scattered in the alveolar walls. this protozoan infection was first thought to be toxoplasmosis but immunoperoxidase staining revealed large numbers of sarcocystis canis. this is the first case of canin ... | 2003 | 12735355 |
| toxoplasma gondii, neospora caninum, sarcocystis neurona, and sarcocystis canis-like infections in marine mammals. | toxoplasma gondii, neospora caninum, sarcocystis neurona, and s. canis are related protozoans that can cause mortality in many species of domestic and wild animals. recently, t. gondii and s. neurona were recognized to cause encephalitis in marine mammals. as yet, there is no report of natural exposure of n. caninum in marine mammals. in the present study, antibodies to t. gondii and n. caninum were assayed in sera of several species of marine mammals. for t. gondii, sera were diluted 1:25, 1:50 ... | 2003 | 14580799 |
| hepatitis associated with a sarcocystis canis-like protozoan in a hawaiian monk seal (monachus schauinslandi). | a hawaiian monk seal (monachus schauinslandi) died in captivity at the national marine fisheries service, kewalo basin facility in honolulu, hawaii. the animal was icteric, and the liver was friable. microscopic lesions were detected in the colon and liver. colonic lesions included multifocal, necrohemorrhagic colitis associated with gram-negative bacilli. the liver lesions included random hepatic necrosis and cholestasis. asexual stages of a sarcocystis canis-like apicomplexan were detected in ... | 2003 | 14740925 |
| clinical sarcocystis neurona, sarcocystis canis, toxoplasma gondii, and neospora caninum infections in dogs. | sarcocystis neurona, sarcocystis canis, toxoplasma gondii, and neospora caninum are related apicomplexans that can cause systemic illness in many species of animals, including dogs. we investigated one breeder's 25 basset hounds for these infections. in addition, tissues from dogs and other non-canine hosts previously reported as s. canis infections were studied retrospectively. schizonts resembling those of s. neurona, and recognized by polyclonal rabbit anti-s. neurona antibodies, were found i ... | 2006 | 16458431 |
| fatal hepatic sarcocystosis in a puppy with eosinophilia and eosinophilic peritoneal effusion. | a 3-month-old male golden retriever puppy was evaluated for lethargy and fever of 2-days duration. results of a cbc and biochemical profile revealed marked eosinophilia (6.3 x 10(3)/microl; reference interval 0.1-1.2 x 10(3)/microl), moderate thrombocytopenia, and increased activities of alanine aminotransferase, aspartate aminotransferase, and creatine kinase. hepatomegaly and peritoneal effusion were found using abdominal ultrasound. peritoneal fluid analysis revealed eosinophilic inflammation ... | 2006 | 16967426 |
| intestinal parasites of dogs on the galapagos islands. | dogs on the galapagos islands are a unique population created by isolation from the mainland and regulations prohibiting further importation. the effect of infectious agents of these domestic dogs on the indigenous fauna is largely unknown. the purpose of this study was to determine the prevalence of intestinal parasites in dogs on the galapagos islands. fecal samples were collected from 97 dogs presented during neutering campaigns on santa cruz (n=51), san cristobal (n=17), and isabela (n=29) i ... | 2010 | 20176441 |
| two new species of sarcocystis (apicomplexa: sarcocystidae) infecting the wolverine (gulo gulo) from nunavut, canada. | infection with sarcocystis species is common in many species of animals, but it has not yet been reported in wolverines (gulo gulo). histological sections of tongues from 41 wolverines in the kitikmeot region, nunavut, canada, were examined for sarcocysts. sarcocysts were found in 33 (80.4%) wolverines. two structurally distinct types of sarcocysts were found. type a sarcocysts were thin (<1 µm thick) walled. ultrastructurally, the parasitophorous vacuolar membrane (pvm) had minute undulations, ... | 2010 | 20950105 |
| fatal hepatic sarcocystosis in a captive black bear (ursus americanus) associated with sarcocystis canis-like infection. | fatal hepatic sarcocystosis was diagnosed in a 13-year-old captive black bear (ursus americanus) with a history of acute onset of vomiting, polyuria, polydipsia, and bilirubinuria. gross lesions included severe icterus, multisystemic hemorrhage, and gall bladder edema. the most significant microscopic lesion was severe necrotizing hepatitis with intralesional protozoa that reproduced by endopolygeny consistent with a sarcocystis spp. infrequent microglial nodules were randomly scattered within t ... | 2011 | 21398469 |
| acute fatal sarcocystosis hepatitis in an indo-pacific bottlenose dolphin (tursiops aduncus) in hong kong. | unlike most species in the genus sarcocystis, sarcocystis canis has a broad intermediate host range. its life cycle is incompletely known and most reports are from the usa. here we report fatal hepatitis in a 4year old male indo-pacific bottlenose dolphin (tursiops aduncus) from hong kong associated with a s. canis-like infection. diagnosis was made based on clinical presentation, histopathology, transmission electron microscopy (tem), and molecular characterization. microscopically, s. canis-li ... | 2017 | 28215870 |
| sarcocystis caninum and sarcocystis svanai n. spp. (apicomplexa: sarcocystidae) associated with severe myositis and hepatitis in the domestic dog (canis familiaris). | 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 s ... | 2016 | 25256157 |
| sarcocystis canis associated hepatitis in a steller sea lion (eumetopias jubatus) from alaska. | sarcocystis canis infection was associated with hepatitis in a steller sea lion (eumetopias jubatus). intrahepatocellular protozoal schizonts were among areas of necrosis and inflammation. the parasite was genetically identical to s. canis and is the first report in a steller sea lion, indicating another intermediate host species for s. canis. | 2014 | 24484486 |