| [field survey of sarcocystis infection in the tibet autonomous region]. | fecal specimens of 926 persons from duilongdeqing, milin and linzhi counties of tibet were examined by the zinc sulfate flotation method. the prevalences of sarcocystis hominis in the three counties were 20.5%, 22.5% and 22.9% respectively (p greater than 0.05), with an average of 21.8%, and those of sarcocystis suihominis were 0, 0.6% and 7.0% respectively (p less than 0.01). no significant difference in infection rate was found between different age or sex groups. sarcocystis was detected in 4 ... | 1991 | 1831698 |
| evaluation of two neospora caninum recombinant antigens for use in an enzyme-linked immunosorbent assay for the diagnosis of bovine neosporosis. | neospora caninum is a recently described apicomplexan parasite which causes paralysis and death in dogs. neospora parasites also cause abortion and neonatal morbidity in cattle, sheep, goats, and horses, and neosporosis is emerging as an important cause of bovine abortion worldwide. the purpose of this study was to identify n. caninum cdna clones encoding antigens that would be useful for the immunodiagnosis of bovine neosporosis. two n. caninum tachyzoite cdna clones expressing antigens that we ... | 1996 | 8705668 |
| serological diagnosis of bovine neosporosis by neospora caninum monoclonal antibody-based competitive inhibition enzyme-linked immunosorbent assay. | neospora caninum, a protozoan parasite closely related to toxoplasma gondii, causes abortion and congenital infection in cattle. to investigate specific methods of antemortem diagnosis, the antibody responses of infected cows were evaluated by immunoblot assay and competitive inhibition enzyme-linked immunosorbent assay (ci-elisa) by using a monoclonal antibody (mab), mab 4a4-2, against n. caninum tachyzoites. mab 4a4-2 bound diffusely to the exterior surface of n. caninum tachyzoites and recogn ... | 1996 | 8735092 |
| serological differences in neospora caninum-associated epidemic and endemic abortions. | a sandwich enzyme-linked immunosorbent assay (elisa) for the sensitive and specific detection of bovine antibodies to neospora caninum was developed and evaluated using sera from cattle experimentally infected with n. caninum, toxoplasma gondii, sarcocystis cruzi, sarcocystis hominis, sarcocystis hirsuta, eimeria bovis, cryptosporidium parvum, babesia divergens, and field sera from naturally exposed animals. field sera were classified using a gold standard that included the results from an indir ... | 1999 | 10461950 |
| identification of sarcocystis hominis-like (protozoa: sarcocystidae) cyst in water buffalo (bubalus bubalis) based on 18s rrna gene sequences. | dna templates were extracted from isolates of sarcocystis hominis-like cysts collected from cattle and water buffalo, as well as from sarcocystis fusiformis cysts and sarcocystis suihominis cysts. the 18s rrna genes were amplified using dna from a single cyst as the templates. approximately 1,367-1,440 bp sequences were obtained. the sequence difference in isolates of sarcocystis hominis-like cysts from water buffaloes, and isolates of s. hominis cysts from cattle were very low, only about 0.1%, ... | 2001 | 11534667 |
| sarcocystis spp. in human infections. | sarcocystis species are intracellular protozoan parasites with an intermediate-definitive host life cycle based on a prey-predator relationship. asexual stages develop in intermediate hosts after they ingest the oocyst stage from definitive-host feces and terminate with the formation of intramuscular cysts (sarcocysts). sarcocysts in meat eaten by a definitive host initiate sexual stages in the intestine that terminate in oocysts excreted in the feces. most sarcocystis species infect specific ho ... | 2004 | 15489353 |
| cyclospora cayetanensis, a food- and waterborne coccidian parasite. | food- and waterborne coccidia including cryptosporidium parvum, cyclospora cayetanensis, sarcocystis hominis and sarcocystis suihominis, and isospora belli are cyst-forming apicomplexan protozoa that cause intracellular infections, predominantly in the epithelial cells of the intestine. they are transmitted by oocysts from person-to-person by the fecal-oral route or via contaminated water or food. the most common symptom of infection is diarrhea, however, asymptomatic infections occur. infection ... | 2004 | 15567580 |
| differential molecular identification of taeniid spp. and sarcocystis spp. cysts isolated from infected pigs and cattle. | in the present work, the species-specific identification of taeniid spp. cysticerci and sarcocystis cysts isolated from infected pigs and cattle was achieved by pcr. in particular: (i) multiplex-pcr derived from hdp2 dna fragment, specific for taenia saginata/taenia solium; (ii) pcrs and pcr-rflps of the rdna internal transcribed spacers 1 and 2 (its1 and its2) for the differential diagnosis of taeniids; (iii) pcr derived from the 18s rrna gene and sequencing, specific for sarcoystis spp. the co ... | 2006 | 16870346 |
| [observation on the clinical symptoms and sporocyst excretion in human volunteers experimentally infected with sarcocystis hominis]. | to investigate the excretion of sporocysts and clinical manifestations in humans experimentally infected of sarcocystis hominis. | 1999 | 12563811 |
| comparative evaluation of immunofluorescent antibody and new immunoblot tests for the specific detection of antibodies against besnoitia besnoiti tachyzoites and bradyzoites in bovine sera. | besnoitia besnoiti, an apicomplexan parasite causes economically important disease in cattle in many countries of africa and asia is re-emerging in europe. serological identification of infected cattle is important because introduction of these animals into naive herds seems to play a major role in the transmission of the parasite. we report new, simplified immunoblot-based serological tests for the detection of b. besnoiti-specific antibodies. antigens were used under non-reducing conditions in ... | 2010 | 20378250 |
| prevalence of sarcocystis spp. cysts in japanese and imported beef (loin: musculus longissimus). | a survey was carried out to investigate the occurrence of sarcocystis infection in the loin (musculus longissimus) of japanese and imported beef. in all, the muscle tissue of 482 samples were examined by histological method. the prevalence of sarcocystis unspecified species cysts was lower in japanese beef (total 6.31%: 0% in holstein castrated, 12.96% in holstein milk cow, 3.33% in japanese shorthorn and 11.58% in japanese black cattle) than in beef imported from america (36.78%) or australia ( ... | 1999 | 11269330 |
| preliminary identification of an intestinal coccidian parasite in man. | an unidentified coccidian parasite was observed in saline faecal smears of five immunocompromised patients. very few of these organisms were observed in the oocystic stage. they were oval in shape with rounded edges and contained two sporulated sporocysts, 7.5-9.5 um in diameter with a nipple like projection. they are smaller than sporocysts of sarcocystis hominis and suihominis. for further identification, the modified ziehl-neelsen stain was used. the sporocysts showed variability in staining. ... | 1998 | 9914703 |
| [human intestinal coccidiosis in chile: infections by isospora belli and by sarcocystis hominis (isospora hominis)]. | | 1981 | 6812599 |
| human intestinal sarcosporidiosis: report of six cases. | specimens of resected small intestine from six patients aged 3 to 70 years with acute enteritis contained sexual forms of sarcosporidia. histopathologically, the diagnoses were either segmental eosinophilic enteritis or segmental necrotizing enteritis. the presence of sarcosporidia in market beef (bos indicus), and the patients' habit of eating the beef uncooked in the form of chili-hot dishes, suggest that the species is an ox-man parasite similar to sarcocystis hominis (railliet and lucet, 189 ... | 1982 | 6800273 |
| prevalence of enteric protozoan oocysts with special reference to sarcocystis cruzi among fecal samples of diarrheic immunodeficient patients in iran. | the genus sarcocystis is not usually considered as an important enteric pathogen in immune compromised patients. it might be expected that species for which humans are the final host (sarcocystis hominis and sarcocystis suihominis as well as possibly others) would be encountered increasingly often in immunodeficient persons. this study aimed to address how to detect and differentiate sarcocystis oocysts and/or sporocysts from enteric protozoans in the diarrheal samples of immunodeficient patient ... | 2016 | 27417091 |
| [incidence and clinical aspects of intestinal coccidiosis in a tropical medicine practice]. | the microscopic investigation of 3 500 faecal samples with a method of concentration combining the ether treatment and flottation, has allowed to spot 5 cases (out of 700) of isosporosis (isospora belli) among subjects coming all from the tropical area and showing an occasionally serious symptomatology which has been treated by tinidazole. besides 2% samples were infested by sarcocystis hominis. the subjects affected were also from tropical origin, but did not present clinical disorders directly ... | 1980 | 6784940 |
| generalized eosinophilic myositis with sarcosporidiosis in a finnish cow. | a case of generalized eosinophilic myositis with sarcosporidiosis in a finnish cow is reported. the whole carcass was condemned because of massive changes in skeletal muscles. cat or man are the final hosts of sarcocystis bovifelis or sarcocystis hominis. the aetiology of eosinophilic myositis remains open and so does the question whether sarcosporidiosis has something to do with it. | 1980 | 6767223 |
| experimental sarcocystis hominis infection in cattle: lesions and ultrastructure of sarcocysts. | five calves inoculated orally with 10(5)-10(6) sporocysts of sarcocystis hominis from human feces were necropsied 10, 18, 24, 111, and 222 days postinoculation (dpi). calves became febrile (greater than 40-41 c) between 10 and 24 dpi and developed mild anemia (packed cell volumes were reduced by 40% of initial values) between 29 and 57 dpi but otherwise remained clinically normal. focal hepatitis, mesenteric lymphadenitis, and myocarditis were seen in calves at 10, 18, and 24 dpi. no stages of t ... | 1988 | 3138399 |
| the prevalence and identity of sarcocystis in beef cattle in new zealand. | muscle tissue from the oesophagus and diaphragm of 500 beef cattle slaughtered in new zealand was examined for sarcocystis infection by microscopic examination of cysts isolated from muscle samples. all cattle were infected with sarcocystis; based on light microscopy of cysts, 98% had thin-walled sarcocystis cruzi cysts and 79.8% had thick-walled (sarcocystis hirsuta/sarcocystis hominis) cysts. cysts were also collected for electron microscopy and transmission experiments. thick-walled cysts cou ... | 1987 | 3113040 |
| ultrastructural differentiation between sarcocysts of sarcocystis hirsuta and sarcocystis hominis. | the ultrastructure of macroscopic (2-7 mm) sarcocystis hirsuta sarcocysts from naturally infected cattle from new zealand was compared with the ultrastructure of 222-day-old s. hominis in experimentally infected cattle in the united states. the villar protrusions of s. hirsuta were approximately 8 microns long, constricted at the base, expanded laterally in the mid-region and tapered distally. some of the villar tips were folded to form two to four conical projections. the distal portion of the ... | 1989 | 2511660 |
| prevalance, morphology, and molecular characterization of sarcocystis heydorni sarcocysts from cattle (bos taurus) in china. | cattle are intermediate hosts for 2 zoonotic species of sarcocystis, sarcocystis hominis and sarcocystis heydorni. here we report s. heydorni from cattle for the first time in china. sarcocysts of s. heydorni were found in muscle from 173 of 1,630 (10.6%) cattle in abattoirs (9.7% in skeletal muscles, 3.4% esophagus, 2.5% diaphragm, and 0.1% tongue; heart muscle was negative). by means of light microscopy, s. heydorni sarcocysts were thin-walled (<1 μm). using transmission electron microscopy, t ... | 2016 | 27362658 |
| prevalence and first molecular identification of sarcocystis species in cattle and water buffaloes in india. | the importance of sarcocystis hominis in causing zoonotic infections is well known. recently, s. hominis like cysts have been reported from water buffalo in china. previous studies indicate prevalence of sarcocystis species in bovine populations in india but molecular evidence is required for proper species differentiation. we examined two hundred and ninety six cardiac tissue samples of indian water buffaloes and cattle from northern and western parts of the country. tissues were examined for s ... | 2016 | 27447215 |
| [studies on man-cattle-man infection cycle of sarcocystis hominis in yunnan]. | the present paper reports on the results of an experimental study on man-cattle-man infection of sarcocystis hominis, found in yunnan province. about ten thousand sporocysts collected from the feces of persons naturally infected with sarcocystis hominis were fed to a calf, which was dissected 150 days later. numerous cysts of sarcocystis hominis were found in the cardiac and skeletal muscles. by light microscopy, the cyst wall of fresh preparation showed numerous thick, finger-like projections, ... | 1990 | 2114230 |
| [epidemiology of intestinal parasitosis in laos (with anti-amoebic antibody levels)]. | the overall prevalence rate of the intestinal parasites in laos ranges from 76.8% to 95.7% depending on living conditions. the predominant species is opisthorchis complex with the peak in age group greater than 20 years and infected in one village all men over 20 years. unusually high frequency demonstrated sarcocystis hominis as well as taenia sp. with the culmination of infection among the adults. the habit of eating raw flesh of fish, beef and pork is responsible for the spreading of these th ... | 1991 | 1914049 |
| human infections with sarcocystis species. | recurrent outbreaks of muscular sarcocystosis among tourists visiting islands in malaysia have focused international attention on sarcocystosis, a disease once considered rare in humans. sarcocystis species require two hosts, definitive and intermediate, to complete their life cycle. humans can serve as definitive hosts, with intestinal sarcocystosis for two species acquired from eating undercooked meat: sarcocystis hominis, from beef, and sarcocystis suihominis, from pork. symptoms such as naus ... | 2015 | 25715644 |
| molecular identification of sarcocystis hominis in native cattle of central iran: a case report. | sarcocystis spp. are two-host protozoan parasites belonging to the phylum apicomplexa. among different known species of sarcocystis in cattle, only sarcocystis hominis is important from the public health viewpoint, because of its zoonotic characteristics. this study presents the first molecular identification of s. hominis in native cattle in central iran. a sample of diaphragm muscle from a 6-year-old native cow slaughtered at yazd slaughterhouse, yazd, central iran, was collected in may 2013. ... | 2014 | 24862059 |
| unusual case presentation of intestinal sarcocystis hominis infection in a healthy adult. | sarcocystosis is mainly a veterinary problem; however, humans can serve as the definitive host for at least two species (sarcocystis hominis and sarcocystis suihominis). intestinal infections occur in the definitive host after ingesting the intramuscular cysts (sarcocysts) in the intermediate host, which initiate sexual stages in the intestine that terminate in oocysts excreted in the faeces. | 2014 | 28663816 |
| current status of food-borne parasitic zoonoses in laos. | stool samples from a total of 1,008 persons were examined for intestinal parasites during a comprehensive study on the epidemiology of small fluke infections in laos. the prevalence of small fluke eggs in the stool was seen to peak at age 20 years, particularly in men from villages (90.4%). three quarters of infections belong to the category of light infections and only 0.6% to the category of very heavy according to eggs per gram of feces (epg). the highest epg was in the 11-15 year age group. ... | 1991 | 1822938 |
| combined sarcocystis and gram-positive bacterial infections. a possible cause of segmental enterocolitis in thailand. | between 1981 and 1990, 22 intestinal specimens surgically resected due to segmental enterocolitis were collected and examined. grossly, the specimens were classified into 3 groups 1) acute inflammation with hemorrhage and necrosis 2) constrictive lesion 3) false diverticulum with perforation. mostly, there was unisegmental involvement, distributed in jejunum, ileum and ileocolon. microscopically, small parasitic structures, interpreted to be unconventional excystation stage of sarcocystis homini ... | 1992 | 1402481 |
| diagnosis of sarcocystis spp. in cattle (bos taurus) and water buffalo (bubalus bubalis) in northern vietnam. | our aim was to develop a method for species diagnosis and to obtain data on the prevalence of sarcocystis infections in cattle and water buffalo in the son la province of northern vietnam. meat samples of naturally infected animals were examined by light and electron microscopy as well as by molecular methods. a pcr of part of the 18s rdna gene followed by rflp analysis was modified to detect infections with different sarcocystis spp. in cattle and water buffaloes slaughtered in the son la provi ... | 2009 | 19783101 |
| non-invasive methods for identifying oocysts of sarcocystis spp. from definitive hosts. | because the excreted sporocysts and/or oocysts of various species of sarcocystis may not be discriminated morphologically, we sought to validate a diagnostic technique based on variation in the 18s rdna sequence. oocysts and/or sporocysts from three taxa of sarcocystis were collected from human, feline, and canine definitive hosts that had fed upon meats infected with the muscle cysts of sarcocystis hominis, sarcocystis fusiformis and a species of sarcocystis from water buffalo that could not be ... | 2009 | 19336258 |
| detection of sarcocystis parasites in retail beef: a regional survey combining histological and genetic detection methods. | sarcocystis spp. are parasitic protists acquired when undercooked, cyst-laden meat is consumed. while both sarcocystis hominis and s. cruzi encyst in beef, only s. hominis is pathogenic to humans. in this study, we used histological methods and novel molecular techniques to determine the regional prevalence and identity of sarcocystis spp. in retail beef. of 110 samples, 60 supported amplification of parasite rrna by pcr. all 41 sequenced representatives were identified as s. cruzi. to compare d ... | 2008 | 18939769 |
| epidemiology and control prospects of foodborne parasitic zoonoses in the european union. | in the 27 member states of the european union, zoonotic parasites transmitted by food are circulating with different prevalence according to the country, the environmental conditions, the human behaviour, and the socio-economic level. foodborne parasites can be divided in two main groups according to the way of transmission to humans. these foodborne parasites reach the human beings through the consumption of raw infected food such as muscle tissues of different animal species (toxoplasma gondii ... | 2008 | 18693552 |
| chronic polymyositis associated with disseminated sarcocystosis in a captive-born rhesus macaque. | a 2-year-old, captive-born, clinically healthy male, rhesus macaque, was euthanatized as part of an experimental study. at necropsy, diffuse pale streaking of the trunk, lumbar, and limb muscles were noted macroscopically. on histology, numerous elongated cysts that contained crescent-shaped basophilic spores were found in the fibers of skeletal muscles. scattered affected myofibers were degenerate and accompanied by eosinophilic-to-granulomatous inflammation. sarcocysts had prominent villus-lik ... | 2007 | 17846244 |
| molecular-based identification of sarcocystis hominis in belgian minced beef. | sarcocystis hominis, one of the three species of sarcocystis that cause muscular cysts in cattle, is a protozoan parasite that can infect the human intestinal tract. the objective of the present study was to develop a new molecular identification method capable of discriminating among the bovine sarcocystis species and to apply this tool in combination with stereomicroscopy to determine the presence of sarcocystis spp. in minced beef in belgium, with special attention to sarcocystis hominis. a p ... | 2007 | 17612088 |
| eosinophilic myositis due to sarcocystis hominis in a beef cow. | a case of eosinophilic myositis (em) in an 8-year-old beef cow was investigated. the animal originated from a herd in which a high incidence of the disease had been observed in slaughtered adult females over a period of 2 years. histologically, the lesions in the muscles were characterized as granulomas with a central core of degenerate eosinophils and remnants of necrotic muscle fibres, surrounded by a rim of epithelioid cells and fibrous tissue with an infiltrate consisting predominantly of eo ... | 2006 | 17067618 |
| experimental sarcocystis hominis infection in a water buffalo (bubalus bubalis). | a water buffalo (bubalus bubalis) was fed 5.0 x 10(5) sarcocystis hominis sporocysts from a human volunteer who had ingested s. hominis cysts from naturally infected cattle. a necropsy was performed on the buffalo 119 days after inoculation, and a large number of microscopic sarcocysts (approximately 5,000/g) were found in skeletal muscles. ultrastructurally, the sarcocyst wall from buffalo muscles has upright villar protrusions measuring about 5.6 x 0.8 microm with numerous microtubules that ru ... | 2003 | 12760663 |
| prevalence of thin-walled sarcocystis cruzi and thick-walled sarcocystis hirsuta or sarcocystis hominis from cattle in iran. | bovine sarcocystosis is caused by sarcocystis cruzi and is known to cause considerable morbidity and mortality in cattle. this species is distributed worldwide in cattle and is the most prevalent of the sarcocystis species infecting cattle. there is high infection rate of sarcocyst in cattle in iran, but to our knowledge, there is no study about identification of sarcocystis species. this work aimed to survey prevalence of s. cruzi cyst in slaughtered cattle of isfahan, iran. in this study, esop ... | 2010 | 20379775 |
| sarcocystis sinensis is an ultrastructurally distinct parasite of water buffalo that can cause foodborne illness but cannot complete its life-cycle in human beings. | in this study, we compared the morphology of sarcocystis sinensis and sarcocystis hominis, and assessed the infectiousness of s. sinensis for human volunteers. the cysts of s. sinensis were from water buffalo (bubalus bubalis) and those of s. hominis were from cattle (bos taurus). transmission electron microscopy of s. sinensis cysts revealed that the cyst wall had leaning, finger-like protrusions measuring 1.44-5.08μm in length and without invaginations on the tip surface of the protrusions. in ... | 2010 | 21236581 |
| detection of a morphogenetically novel sarcocystis hominis-like in the context of a prevalence study in semi-intensively bred cattle in italy. | the aim of this study was to determine the prevalence of sarcosporidiosis in semi-intensively bred cattle in northwestern italy. a diagnostic protocol was setup in which infected animals were identified by rapid histological examination of the esophagus, diaphragm, and heart and the detected sarcocystis spp. were subsequently typed using conventional electron microscopy in combination with molecular techniques. sarcosporidia cysts were detected in 78.1% of the animals and were seen most often in ... | 2011 | 21556683 |
| detection of sarcocystis spp. in cattle (bos taurus) and water buffaloes (bubalus bubalis) in iran by pcr-rflp. | sarcocystis species are cyst-forming intracellular protozoan parasites. cattle are mainly infected with sarcocystis cruzi, sarcocystis hominis and sarcocystis hirsuta. water buffaloes are intermediate hosts for sarcocystis fusiformis, sarcocystis levinei (s. cruzi-like species), sarcocystis dubeyi, sarcocystis sinensis (s. hominis-like species) and sarcocystis buffalonis (s. hirsuta- like species). the aim of this study was identification of sarcocystis spp. in slaughtered cattle and water buffa ... | 2014 | 26688630 |
| a survey of bovine, bubaline and swine sarcocystosis in the philippines. | in a survey conducted from january to december, 1994, muscle tissues in 12 out of 22 slaughtered carabaos ages 8-17 years old and obtained from the food terminal inc, abbatoir in laguna showed numerous white and creamy elliptic-shaped soft bodied macrocysts in the throat muscles. microscopic examination of the throat and cardiac muscle tissues revealed the presence of fusiform-shaped microcysts. our observations are consistent with previous reports incriminating sarcocystis fusiformis as the mos ... | 1997 | 9656372 |
| characterization of bovine sarcocystis species by analysis of their 18s ribosomal dna sequences. | two sarcocystis hirsuta isolates from 2 cattle (bos taurus), 2 sarcocystis hominis-like isolates from 2 cattle, 1 each sarcocystis hominis-like isolate from a zoo-born dwarf zebu (b. taurus) and from a zoo-born bison (bison bison), and 1 each sarcocystis cruzi isolate from the dwarf zebu and the bison have been characterized by comparing the directly sequenced polymerase chain reaction products of their 18s rrna genes. sequences of 2 different isolates from the same species always showed a very ... | 1998 | 9488337 |
| first isolation of sarcocystis hominis from cattle in japan. | sarcocystis hominis was first isolated from slaughtered cattle raised in japan. cysts were 1,220-4,460 x 80-384 microns in size and their wall was 3 to 6 microns thick and appeared radially striated in the histopathological sections because of the presence of palisade-like villar protrusions on the surface. the protrusions were 3.1-4.3 x 0.7-1.1 microns in size and had many microtubules in the core. two cynomolgus monkeys, macaca fascicularis, fed with the sarcocystis cysts began to pass sporocy ... | 1999 | 10331210 |
| a cross-sectional study on intestinal parasitic infections in rural communities, northeast thailand. | despite the existence of effective anthelmintics, parasitic infections remain a major public health problem in southeast asia, including thailand. in rural communities, continuing infection is often reinforced by dietary habits that have a strong cultural basis and by poor personal hygiene and sanitation. this study presents a survey of the prevalence of intestinal parasitic infections among the people in rural thailand. the community-based cross-sectional study was conducted in villages in khon ... | 2013 | 24516280 |
| sarcocystis heydorni, n. sp. (apicomplexa: sarcocystidae) with cattle (bos taurus) and human (homo sapiens) cycle. | cattle (bos taurus) are intermediate hosts for four species of sarcocystis, namely sarcocystis cruzi, sarcocystis hirsuta, sarcocystis hominis, and sarcocystis rommeli. of these four species, mature sarcocysts of s. cruzi are thin-walled (<1 μm), whereas s. hirsuta, s. hominis, and s. rommeli have thick walls (4 μm or more). here, we describe a new species of sarcocystis with thin-walled sarcocysts in cattle. two newborn calves were fed with sporocysts from the feces of a human volunteer who had ... | 2015 | 26243573 |
| the resurrection of a species: sarcocystis bovifelis heydorn et al., 1975 is distinct from the current sarcocystis hirsuta in cattle and morphologically indistinguishable from sarcocystis sinensis in water buffaloes. | in the mid-1970s, it was established through transmission experiments and ultrastructural studies of sarcocysts by transmission electron microscopy (tem) that cattle was the intermediate host of three sarcocystis spp. using dogs, cats and humans, respectively, as definitive hosts. the cat-transmitted species with microscopic sarcocysts was initially named sarcocystis bovifelis, but it was soon renamed sarcocystis hirsuta, since it was considered to be identical with a previously named species. i ... | 2016 | 26462803 |
| microscopical and serological studies on sarcocystis infection with first report of s. cruzi in buffaloes (bubalus bubalis) in assiut, egypt. | this study was performed for the purpose of investigating the prevalence and the species composition of sarcocystis spp. in buffaloes in assiut province, egypt. macroscopically we reported the infection of buffaloes with sarcocystis fusiformis, while microscopically three sarcocystis species (sarcocystis cruzi, sarcocystis levinei and sarcocystis hominis) cysts were recognized, and were differentiated by their morphological features using both histopathological sections and electron microscope s ... | 2014 | 25320487 |
| sarcocystis sinensis is the most prevalent thick-walled sarcocystis species in beef on sale for consumers in germany. | bovines are intermediate hosts of sarcocystis cruzi, sarcocystis hirsuta, and sarcocystis hominis, which use canids, felids, or primates as definitive hosts, respectively. cattle represent also intermediate hosts of sarcocystis sinensis, but the definitive hosts of this parasite are not yet known. sarcocystosis in cattle is frequently asymptomatic. the infection is characterized by the presence of thin-walled (s. cruzi) or thick-walled muscle cysts or sarcocysts (s. hominis, s. sinensis, and s. ... | 2014 | 24700022 |
| development of a multiplex real time pcr to differentiate sarcocystis spp. affecting cattle. | cattle are intermediate hosts of sarcocystis cruzi, sarcocystis hirsuta and sarcocystis hominis which use canids, felids or primates as definitive hosts (dh), respectively, and in addition of sarcocystis sinensis from which the dh is unknown. the aims of the present study were to develop and optimize a multiplex real time pcr for a sensitive and specific differentiation of sarcocystis spp. affecting cattle and to estimate the prevalence of sarcocystis spp. in argentinean cattle. the 18s rrna gen ... | 2013 | 23680541 |
| first identification of sarcocystis hominis in iranian traditional hamburger. | zoonotic concerns of cattle sarcocystosis are of importance, because humans are the final host for sarcocystis hominis. therefore the meat products containing beef may encompass sarcocysts which endanger food safety. in this study, we described the first report of molecular identification of s. hominis in iranian traditional hamburgers using pcr-rflp. throughout a pilot research that was carried out to setup a molecular approach to identify the sarcocystis spp., using pcr-rflp, a sample of raw i ... | 2015 | 26688649 |
| sarcocystis rommeli, n. sp. (apicomplexa: sarcocystidae) from cattle (bos taurus) and its differentiation from sarcocystis hominis. | cattle (bos taurus) are intermediate hosts for three named species of sarcocystis, s. cruzi, s. hirsuta, and s. hominis. recently, a fourth species was identified and named s. sinensis. however, s. sinensis originally named a species of sarcocystis in water buffalo (bubalus bubalis) in china. based on unverifiable evidence, it was suggested that the same parasite infects cattle. in addition, s. sinensis was recently declared as nomen nudum because its naming violated the rules of international c ... | 2016 | 26111603 |