| extraintestinal stages fo isospora ohioensis from dogs in mice. | the development of isospora ohioensis was studied in mice by feeding tissues of mice inoculated with oocysts to coccidia-free dogs and by the examination of mesenteric lymph nodes using light and electron microscopes. extraintestinal organs of mice became infectious to dogs within 1 day after ingesting oocysts and remained infectious for at least 211 days after inoculation (dai). isospora ohioensis sporozoites were found in lymphoreticular cells of mesenteric lymph nodes of mice from 1-374 dai. ... | 1978 | 682070 |
| a review of sarcocystis of domestic animals and of other coccidia of cats and dogs. | the nomenclature, life cycles, and pathogenicity of sarcocystis of domestic animals are reviewed. sarcocystis had a 2-host life cycle, with carnivores as definitive hosts and herbivores as intermediate hosts. the following species are found in domestic animals (with the definitive hosts given in parentheses): 3 species in the ox: s cruzi (dog, wolf, coyote, raccoon, fox), s hirsuta (cat), s hominis (man, monkey); 2 species in the sheep: s ovicanis (dog), s tenella (cat); 3 species in the pig: s ... | 1976 | 824260 |
| camel (camelus dromedarius) and sheep (ovis aries) meat as a source of dog infection with some coccidian parasites. | experimental infection of dogs with camel (camelus dromedarius) meat resulted in infection of the dogs with isospora canis, hammondia heydorni and sarcocystis cameli. the dogs fed sheep (ovis aries) meat passed oocysts of isospora canis, isospora ohioensis and sporocyts of sarcocystis spp. extraintestinal stages were detected in the intestinal lymph node of a rabbit killed 4 days following inoculation with isospora ohioensis oocysts. dogs fed the rabbit (killed 4 days after inoculation with i. o ... | 1992 | 1496801 |
| a survey on the prevalence of gastrointestinal parasites of dogs in the area of thessaloniki, greece. | faecal specimens randomly taken from 232 healthy dogs living in the area of thessaloniki were screened for internal parasites. in 39.2% of the examined dogs excretion of sarcocystis bovicanis (1.3%), isospora ohioensis/burrowsi (3.9%), giardia lamblia (0.8%), hammondia heydorni (0.4%), dicrocoelium dendriticum (0.8%) diplopylidium nolleri (0.4%), joyeuxiella pasqualei (0.8%), taeniids (0.4%), toxocara canis (22.4%), toxascaris leonina (1.3%), uncinaria stenocephala (3.0%), trichuris vulpis (2.6% ... | 1988 | 3372979 |
| [incidence of coccidia in dogs in brno and the surrounding area]. | in the course of two years, 663 dogs from brno and its vicinity were subjected to clinical and parasitological examination with a special reference to the occurrence of coccidia. a saturated sugar solution with the specific weight of 1150 was used as the flotation medium. coccidia were found in 2.17% of the dogs examined. the oocysts of the groups isospora ohioensis, i. burowsi and i. neorivolta were identified most frequently (2.11% of the dogs). four dogs (0.60%), all alike, eliminated the ooc ... | 1984 | 6440344 |
| the prevalence of dirofilaria immitis and other parasites in urban pound dogs in north-eastern victoria. | the results of a survey investigating the prevalence of dirofilaria immitis and other helminth and protozoan infections in urban dogs in north-eastern victoria are presented. d. immitis was detected in 2.7% of the general population (8.3% of dogs older than 2 years). microfilariae of d. immitis were not detected in the peripheral circulation of 30% of dogs infected with the adult parasites. the most prevalent gastro-intestinal parasites were dipylidium caninum 57%; trichuris vulpis 41%; toxocara ... | 1982 | 7115227 |
| phylogenetic analysis of coccidia based on 18s rdna sequence comparison indicates that isospora is most closely related to toxoplasma and neospora. | the phylogenetic relationships and taxonomic affinities of coccidia with isosporan-type oocysts have been unclear as overlapping characters, recently discovered life cycle features, and even recently discovered taxa, continue to be incorporated into biological classifications of the group. we determined the full or partial 18s ribosomal rna gene sequences of three mammalian isospora spp., isospora felis, isospora ohioensis and isospora suis, and a sarcocystis sp. of a rattlesnake, and used these ... | 1998 | 9561772 |
| toltrazuril treatment of cystoisosporosis in dogs under experimental and field conditions. | coccidia of the genus cystoisospora cause mild to severe diarrhoea in dogs. the effects of toltrazuril treatment on cystoisosporosis were studied under experimental and field conditions. twenty-four puppies were experimentally infected each with 4 x 10(4) oocysts of the cystoisospora ohioensis group. three groups of six puppies were treated 3 dpi with 10, 20 or 30 mg/kg body weight of toltrazuril suspension (5%); the remaining six puppies served as non-treated controls. toltrazuril suspension or ... | 2000 | 11068811 |
| specific detection of neospora caninum oocysts in fecal samples from experimentally-infected dogs using the polymerase chain reaction. | neospora caninum oocysts, passed in the feces of a definitive host (dog), were isolated, and genomic dna was extracted. a polymerase cahin reaction (pcr) targeting the n. caninum-specific nc 5 genomic sequence was performed using the isolated dna. a synthesized competitor molecule containing part of the nc 5 sequence was included in the assay as a check against false-negative pcr results and to quantify n. caninum oocyst dna in fecal samples. a standard curve of the ratio of fluorescence intensi ... | 2001 | 11318571 |
| an epidemiological study of gastrointestinal parasites of dogs from southern greater buenos aires (argentina): age, gender, breed, mixed infections, and seasonal and spatial patterns. | a total of 2193 fecal samples from owned dogs were collected during the 2003-2004 period in southern greater buenos aires, and were evaluated for the presence of intestinal parasites by a flotation-centrifugation method. the overall prevalence was 52.4%, and the 11 species found were: ancylostoma caninum (13%), isospora ohioensis complex (12%), toxocara canis (11%), trichuris vulpis (10%), sarcocystis sp. (10%), giardia duodenalis (9%), isospora canis (3%), hammondia-neospora complex (3%), dipil ... | 2006 | 16364551 |
| [comparison between coproparasitological techniques for the diagnosis of helminth eggs or protozoa oocysts in dogs]. | in this study we evaluated the frequency of enteroparasites in pet dogs and their association with age, sex and breed, as well as the efficiency of the willis-mollay, faust, sedimentation and direct exam methods. by these methods we processed 401 fecal samples. the samples were positive in the following percentages: ancylostoma spp. (53.1%), toxocara canis (20.7%), cystoisospora ohioensis (15.7%), trichuris vulpis (3.7%), dipylidium caninum (2.5%) and taenia spp. (1.0%). toxocara canis (67.3%) a ... | 2006 | 16646994 |
| canine isosporosis - epidemiology of field and experimental infections. | isospora spp. are the causative agents of canine isosporosis. of the 3590 diagnostic samples from austrian dogs (< or = 2 years old), 8.7% contained isospora oocysts, 78% of which from dogs up to 4 months of age. non-haemorrhagic and haemorrhagic diarrhoea were significantly more prevalent in isospora-infected animals than in coccidia-negative ones. twelve of 15 litters from a large commercial dog breeding unit (examined from the third to the 10th week of life) also excreted isospora (average pr ... | 2006 | 17123427 |
| coccidiosis caused by isospora ohioensis-like organisms in three dogs. | three dogs with atypical coccidiosis are described. the age and clinical signs were not those normally associated with coccidiosis described in the literature. the ages of the three dogs were twenty-two months, five months and twelve weeks respectively. the clinical signs were recurrent mild to severe diarrhea, depressed growth and poor body condition. repeated fecal examinations were needed to diagnose the disease. sulfamethazine and amprolium were used successfully in treating the condition in ... | 1985 | 17422514 |
| [prevalence of intestinal canine and feline parasites in saitama prefecture, japan]. | we studied the prevalence of intestinal parasites in animal companions in saitama prefecture, japan, where no detailed data is currently available. between may 1999 and december 2007, fecal samples were collected from 906 dogs and 1,079 cats in public animal shelters and examined by microscopy. overall, prevalence of intestinal parasites in dogs was 38.6% and cats 43.1%. trichuris vulpis was the most prevalent canine parasite species (22.3%), followed by toxocara canis (12.5%), ancylostoma canin ... | 2009 | 19522305 |
| principal intestinal parasites of dogs in tirana, albania. | from 2004 to 2009, the digestive tracts of 111 dogs from suburban areas around tirana, albania, were examined for intestinal helminths. in addition, rectal faecal samples of all dogs were examined for protozoan infections and 48 faecal samples from dogs >6 months of age were processed with the baermann technique to test for the excretion of lungworm larvae. the heart and pulmonary arteries of 30 dogs >6 months of age also were examined for nematode parasites. the intestinal parasite fauna of the ... | 2010 | 20878182 |
| efficacy of emodepside plus toltrazuril suspension (procox(®) oral suspension for dogs) against prepatent and patent infection with isospora canis and isospora ohioensis-complex in dogs. | three randomised, blinded and placebo-controlled laboratory studies were conducted to evaluate the efficacy of emodepside plus toltrazuril suspension (procox(®) suspension for dogs) against isospora canis and isospora ohioensis-complex. unweaned puppies were experimentally infected with sporulated oocysts of i. canis and/or i. ohioensis-complex. in each study, one group was treated during prepatency (2 or 4 days post infection) while dogs in the second group were treated individually after the o ... | 2011 | 21739371 |
| prevalence and risk factors of giardia duodenalis in dogs from romania. | the protozoan giardia duodenalis is a mammalian-infecting parasite that produces diarrhoea and malabsorption in its hosts. a survey to investigate canine infections with g. duodenalis in romania was undertaken between june 2008 and december 2009. the objectives of the study were to (i) estimate the prevalence of infection in different dog populations (kennels, shelters, shepherd, household) using microscopy and a commercially available enzyme-linked immunosorbent assay (elisa) test kit; (ii) to ... | 2011 | 21899952 |
| protozoan and helminth parasite fauna of free-living croatian wild wolves (canis lupus) analyzed by scat collection. | the european wolf (canis lupus) is a large carnivore species present in limited areas of europe with several small populations still being considered as endangered. wolves can be infected by a wide range of protozoan and metazoan parasites with some of them affecting free-living wolf health condition. on this account, an epidemiological survey was conducted to analyze the actual parasite fauna in croatian wild wolves. in total, 400 individual faecal samples were collected during field studies on ... | 2017 | 28043382 |
| pig, donkey and buffalo meat as a source of some coccidian parasites infecting dogs. | experimental infection of dogs with meat samples (oesophagus, heart and diaphragm) from each of 105 pigs, 11 donkeys and 17 egyptian water buffaloes indicated that they contained the infective stages of some coccidian parasites of dogs. the dogs which were fed pig meat shed in their faeces isospora ohioensis, i. canis oocysts and sarcocystis miescheriana sporocysts after prepatent periods of 3-5, 4-7 and 9-10 days, respectively. the dogs which were fed donkey meat excreted only i. ohioensis oocy ... | 1998 | 9760058 |
| studies on isosporosis in dogs. i: isolation and sporulation of isospora ohioensis. | based on the morphologic characteristics of oocysts of the genus isospora, we have demonstrated that i. ohioensis is a relatively common isospora species in dogs which are resident in chonbuk province, korea. the prepatent period of i. ohioensis was four days. the size of the unsporulated oocysts in fresh stool specimens was 22.9 x 19.8 microns (r = 1.16). the size of the contracted sporonts was 17.4 x 16.3 microns (r = 1.06). by 96 hours, sporulation is complete and the ratio of length/width wa ... | 1993 | 8241078 |
| [spectrum of species and infection frequency of endoparasites in bitches and their puppies in south germany]. | toxocara canis, toxascaris leonina, hookworms, trichuris vulpis, strongyloides, hammondia heydorni, sarcocystis spp., isospora canis and isospora ohioensis and/or isospora burrowsi of at least 9 species were detected in 100 randomly selected dog families in southern germany. examinations carried out 5 to 9 times at weekly intervals revealed a monoinfection in 37 litters, infection with two parasite species in 28 litters, with three species in 10 litters and with four species in 6 litters. during ... | 1990 | 2326798 |
| [the frequency of coccidial infection in dog families of different husbandry and breeds in south germany]. | oocysts and/or sporocysts were detected in 50 litters and 37 bitches of 100 coproscopically examined dog families in southern germany. oocysts of isospora spp. were excreted by 41 of the 50 positive litters, 36 and 16 litters shedding oocysts of isospora ohioensis/burrowsi and i. canis, respectively. sporocysts of sarcocystis spp. and oocysts of hammondia heydorni were detected in 12 and 7 litters, respectively. the excretion rates of the dams were arranged analogous to the detection of oocysts ... | 1990 | 2219110 |
| prevalence of sarcocystis infection and other intestinal parasitisms in dogs from a humane shelter in ohio. | fecal specimens from 500 stray dogs in columbus, oh, were examined for evidence of intestinal parasitisms. prevalences (%) of coccidia were: sarcocystis sp, 1.8; isospora canis, 1.8; and isospora ohioensis, 3.6. prevalences (%) of helminths were: toxocara canis, 19.2; toxascaris leonina, 10.2; trichuris sp, 42.2; capillaria sp; 1.0; ancylostoma sp, 60.8; uncinaria sp, 2.4; and taenia sp, 7.4. | 1976 | 815230 |
| isospora ohioensis sp. n. proposed for i. rivolta of the dog. | a new name, isospora ohioensis, is proposed for i. rivolta-like oocysts from dog feces. the name i. rivolta is retained for the cat species. the structure of the oocysts of i. ohioensis is described from a cloned culture of oocysts. oocysts are 24 by 21 mum, sporocysts 17 by 12 mum, and sporozoites 10 by 3 mum. in cross-infection experiments none of 6 coccidia-free dogs shed oocysts after consuming feline i. rivolota, and none of 4 coccidia-free cat shed oocysts after eating canine i. rivolta. | 1975 | 805831 |
| life-cycle of isospora ohioensis in dogs. | | 1978 | 756520 |
| pathogenicity of isospora ohioensis infection in dogs. | | 1978 | 681223 |
| canine coccidiosis attributed to an isospora ohioensis-like organism: a case report. | coccidiosis due to an isospora ohioensis-like organism was diagnosed in a 10-week-old pup. the pup had diarrhea, dehydration, and weight loss before it died 7 days after onset of clinical signs. lesions were limited to the intestinal tract. beginning in the distal end of the small intestine and extending through cecum and colon were mild histiocytic proliferation in the lamina propria and multifocal cryptitis. numerous meronts and gamonts of an unidentified coccidium were in or near the lesions. ... | 1978 | 681222 |
| life cycle of isospora burrowsi n sp (protozoa: eimeriidae) from the dog canis familiaris. | exogenous and endogenous stages of isospora burrowsi n sp from the dog are described. oocysts were spherical or ellipisoidal and 17 to 22 by 16 to 19 micrometer (mean 20.3 by 17.3 micrometer). micropyle, oocyst residuum, and polar granule were not present. sporocysts were 12 to 16 by 8 to 11 micrometer (mean 14.4 by 9.7 micrometer). stieda body was absent, but a sporocyst residuum was present. endogenous stages were in the caudal three-fifths of the small intestine and in the cecum. mature 1st-g ... | 1978 | 629454 |
| coccidia of coyotes in eastern colorado. | eighty-two coyote fecal samples were collected from eastern colorado and examined for coccidia. sporocysts of sarcocystis were observed in 17 of the samples and oocysts of isospora ohioensis were observed in two samples. ten fecal samples contained eimerian coccidia thought to be pseudoparasites of the coyote acquired while ingesting heavily infected rabbits. | 1977 | 402487 |
| experimentally induced clinical cystoisospora canis coccidiosis in dogs with prior natural patent cystoisospora ohioensis-like or c. canis infections. | diarrhea caused by intestinal coccidia (cystoisospora species) is a common problem in pet dogs and in dogs in animal shelters. cystoisospora canis has the largest oocysts of the 4 named species of coccidia infecting dogs. the present study examined an isolate of c. canis obtained from a dog from são paulo, sp, brazil. oocysts sporulated within 2 days at room temperature, and 20 sporulated oocysts were measured at 37.6 by 28.6 μm (range 35-42 by 26-31 μm). most sporulated oocysts contained 2 spor ... | 2013 | 23517349 |
| prevalence, risk factors of infection and molecular characterization of trichomonads in puppies from french breeding kennels. | the trichomonad species tritrichomonas fetus and pentatrichomonas hominis were recently identified in the feces of dogs with diarrhea. however the prevalence and pathogenicity of these parasites in the canine population still remained poorly resolved. therefore the aim of the present study was (1) to determine the prevalence of trichomonads infecting puppies living in french breeding kennels, (2) to confirm the predominance of p. hominis in dogs, (3) to investigate the genetic diversity of p. ho ... | 2013 | 23993636 |
| parasites and vector-borne diseases in client-owned dogs in albania. intestinal and pulmonary endoparasite infections. | from march 2010 to april 2011 inclusive, feces from 602 client-owned dogs visiting four small animal clinics in tirana, albania, were examined using standard coproscopical techniques including giardia coproantigen elisa and immunofluorescent staining of giardia cysts. overall, samples of 245 dogs (40.7 %, 95 % ci 36.6-45.6) tested positive for at least one type of fecal endoparasite (protozoan and/or helminth and/or pentastomid) stage, of which 180 (29.9 %, 95 % ci 26.3-33.7) and 129 (21.9 %, 95 ... | 2015 | 26350379 |
| cystoisospora spp. from dogs in china and phylogenetic analysis of its 18s and its1 gene. | cystoisospora spp. oocysts isolated from dog feces in changchun, china were morphologically similar to those of cystoisospora ohioensis and cystoisospora sp. 1-mm recently isolated from dogs in japanese. sequencing results of the 18s subunit rna gene from isolates in the present study were compared to other cystoisospora spp. and the results suggested that cystoisospora spp. from dogs in changchun was homologous to c. ohioensis and cystoisospora sp. 1-mm. phylogenetic analysis of the 18s rrna se ... | 2012 | 22726385 |