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mechanical transmission of pathogenic organisms: the role of cockroaches.cockroaches (diploptera punctata) are basically tropical insects and will do their best to find a home that is both warm and moist. their involvement in the transmission of tropical diseases is poorly investigated in africa.200516457381
an electron microscopic study of the phosphatases in the ciliate balantidium coli.the localisation and activity of d glucose-6-phosphatase (g-6-pase) and alkaline phosphatase (alp) in the trophozoites of balantidium coli isolated from pig intestine content were investigated using ultrastructural and cytochemical methods. the activity of g-6-pase was demonstrated on the membranes of the endoplasmic reticulum, particularly in the cortical part of the trophozoites. in addition, the product of the reaction to g-6-pase was concentrated in the vesicular structures, which were distr ...200516425154
parasitic zoonoses in papua new guinea.relatively few species of zoonotic parasites have been recorded in humans in papua new guinea. a greater number of potentially zoonotic species, mostly nematodes, occur in animals but are yet to be reported from humans. protozoa is the best represented group of those infecting man, with giardia duodenalis, cryptosporidium parvum, cyclospora cayetanesis, toxoplasma gondii, sarcocystis spp., entamoeba polecki, balantidium coli and, possibly, blastocystis hominis. the only zoonotic helminths infect ...200515831107
survey of intestinal parasites in pigs from intensive farms in guangdong province, people's republic of china.the prevalence of intestinal parasites was investigated in intensive pig farms in guangdong province, china between july 2000 and july 2002. faecal samples from 3636 pigs (both sexes and five age groups) from 38 representative intensive pig farms employing different parasite control strategies were examined for the presence of helminth ova and protozoan oocysts, cysts and/or trophozoites using standard techniques. of the 3636 pigs sampled, 209 (5.7%) were infected with trichuris suis, 189 (5.2%) ...200415710534
intestinal protozoa in wild boars (sus scrofa) in western iran.a total of 12 gastrointestinal tracts of wild boars (sus scrofa) from western iran (luristan) were examined for protozoan infection between september 2000 and november 2001. of 12 boars examined, 67% harbored one or more species of the following protozoa: balantidium coli (25%), tritrichomonas suis (25%), blastocystis sp. (25%), entamoeba polecki (17%), entamoeba suis (8%), iodamoeba butschlii (17%), and chilomastix mesnili (8%). four of these protozoan species also are reported in humans, and p ...200415650104
amebae and ciliated protozoa as causal agents of waterborne zoonotic disease.the roles free-living amebae and the parasitic protozoa entamoeba histolytica and balantidium coli play as agents of waterborne zoonotic diseases are examined. the free-living soil and water amebae naegleria fowleri, acanthamoeba spp., and balamuthia mandrillaris are recognized etiologic agents of mostly fatal amebic encephalitides in humans and other animals, with immunocompromised and immunocompetent hosts among the victims. acanthamoeba spp. are also agents of amebic keratitis. infection is t ...200415567581
attempts to transmit human balantidium coli. 195015401983
severe peritonitis due to balantidium coli acquired in france.the case reported here concerns an alcoholic pork-butcher who presented with severe colitis with peritonitis, caused by the only ciliate protozoan capable of infecting humans, balantidium coli. this parasite is common in a variety of domestic and wild mammals, mainly pigs; however, its prevalence rate in humans is very low--particularly in industrialised, northern countries, including france. the infection is most frequently acquired by ingesting food or water contaminated by pig faeces, and it ...200415112068
[balantidium coli and hexylresorcinol (santokin)]. 195114900656
[determinism of zygosis in balantidium coli in culture; effect of temperature]. 195114896568
[two cases of balantidium coli infection]. 195114865089
balantidium coli infection with special reference to treatment. 195114857249
[contribution to the chemotherapy of balantidium coli. ii. clinical study]. 195114821016
[effect of terramycin on balantidium coli. i. in vitro study]. 195014791618
[use of bacitracin in the treatment of enterocolitis due to balantidium coli]. 195014786716
dysentery caused by balantidium coli in a patient with non-hodgkin's lymphoma from turkey.balantidium coli is the only parasitic ciliate of man. it is a flattened oval organism covered with cilia, and a gullet at the anterior end. it is infrequently pathogenic for man, although epidemic buds in tropical zones have been described. the infection fundamentally affects the colon and causes variable clinic pictures, from asymptomatic to serious dysenteric forms. we present a case of parasitologically diagnosed as causes of diarrhea in a patient with non-hodgkin's lymphoma from turkey. in ...200414760781
agar diffusion studies on the species specificity of balantidium coli, b. caviae and b. wenrichi. 196114459337
[on the mechanism of "in-vitro" effect of oxytetracycline and tetracycline on balantidium coli]. 195914418871
balantidium coli infection treated with terramycin. 195514380899
[an attempt to sensitize balantidium coli (malmsten) to penicillin]. 196414348747
the application of fluorescent antibody test to balantidium coli. 196514287624
histochemical studies on the distribution of monoamine oxidase, simple esterase and glucose-6-phosphatase in balantidium coli from chimpanzees. 196414190340
[finding of balantidium coli in the state of sinaloa, mexico]. 196314190222
histochemical studies on the distribution of phosphatases in balantidium coli from chimpanzees. 196414178040
histochemical studies on the distribution of oxidative enzymes in balantidium coli from chimpanzees. 196314101377
[considerations on a case of rectocolitis due to balantidium coli]. 196314053501
[studies on the cellular structure of balantidium coli and trichonympha agilis for clarification of the phylogeny of flagellated protozoa]. 196314047091
balantidium coli. 196214015154
an immobilization reaction against balantidium coli. 196214009737
[on a method of long-term control of the outcome of tetracycline treatment of balantidium coli infection in guinea pigs]. 196313991810
the cultivation of balantidium coli throughout its viable temperature range. 196113881898
the cultivation of balantidium coli throughout its viable temperature range. 196113881897
the prevalence of balantidium coli in the central highlands of western new-guinea. 196113881826
[the action of protozoacide preparations on the parasite (balantidium coli stein) in the presence of tween and saponin]. 196113791231
[on positive chemotaxis of balantidium coli stein in relation to certain poisons]. 196013791230
[renal traumatism in a large hydronephrotic kidney containing schistosoma haematobium and balantidium coli]. 196013762894
[sensitivity of balantidium coli stein to toxic substances]. 195813604226
[a case of dysentery caused by balantidium coli]. 195813559129
intestinal parasites in the central mountain district of netherlands new-guinea: an important focus of balantidium coli. 195713473690
[diagnosis & treatment of the dysentery caused by trichuris trichiura, entamoeba histolytica & balantidium coli]. 195613453999
[experimental balantidium coli infections in guinea pigs]. 195713443445
the production of hyaluronidase by balantidium coli. 195713405032
on the resistance to heating and cooling of balantidium coli in culture and some observations regarding conjugation. 195513277523
balantidium coli infection in karnal district of punjab. 195413163441
[human balantidiasis caused by balantidium coli]. 195213092504
studies on the respiratory metabolism of balantidium coli. 195313069775
pulmonary balantidium coli infection in a leukemic patient.a 59-year-old woman suffering from chronic lymphocytic leukemia developed pulmonary lesions; bronchoalveolar lavage was performed for possible systemic fungal infection. however, direct microscopic analysis revealed ciliated protozoa identified as balantidium coli. b. coli is the only known pathogenic ciliate, and is usually associated with intestinal infection in areas associated with pig rearing. on very rare occasions the organisms may invade extra-intestinal organs, in this case the lungs of ...200312827655
infectious agent and immune response characteristics of chronic enterocolitis in captive rhesus macaques.chronic enterocolitis is the leading cause of morbidity in colonies of captive rhesus macaques (macaca mulatta). this study's aim was to identify the common enteric pathogens frequently associated with chronic enterocolitis in normal, immunocompetent rhesus monkeys and to elucidate the influence of this clinical syndrome on the host immune system. we analyzed the fecal specimens from 100 rhesus macaques with or without clinical symptoms of chronic diarrhea. retrospective analysis revealed an inc ...200312819098
intestinal parasites in children with diarrhea in delhi, india.the parasitic causes of diarrhea in children in delhi were determined by the direct smear technique; stool specimens of 127 children were examined for intestinal parasites. in 59 cases (46.5%) intestinal helminths and protozoa were demonstrated. ascaris lumbricoides was observed in 1 (0.8%) case, while trichuris trichiura was the finding in 3 (2.4%). protozoal parasites included giardia intestinalis and entamoeba histolytica in 14 (11%) cases each, balantidium coli in 3 (2.4%) cases and cryptosp ...200212757217
balantidium coli pneumonia in an immunocompromised patient.a fatal case is reported of balantidium coli pneumonia in a 71-y-old woman suffering from anal cancer. the diagnosis was made by the discovery of motile trophozoites in a wet mount from bronchial secretions. the usual habitat of the parasite is the colon; lung balantidiasis is very rare.200312693570
rotavirus type a and other enteric pathogens in stool samples from children with acute diarrhea on the colombian northern coast.the present study, conducted from march 1998 to july 2000, determined the etiology of acute diarrhea in 253 young children and infants from cartagena and sincelejo, colombia. in 253 stool samples, the following enteric pathogens were recovered: rotavirus type a (36.6%) as the major agent, salmonella spp (9.0%), shigella spp (8.0%), enteric pathogenic escherichia coli (6.0%), enteric hemorragic esc. coli (2.8%), providencia alcalifaciens (2.8%), aeromonas hydrophila (2.0%), yersinia enterocolitic ...200312687410
health evaluation of free-ranging and semi-captive orangutans (pongo pygmaeus pygmaeus) in sabah, malaysia.baseline data on health of free-ranging wildlife is essential to evaluate impacts of habitat transformation and wildlife translocation, rehabilitation, and reintroduction programs. health information on many species, especially great apes, is extremely limited. between 1996 and 1998, 84 free-ranging orangutans captured for translocation, underwent a complete health evaluation. analogous data were gathered from 60 semi-captive orangutans in malaysia. baseline hematology and serology; vitamin, min ...200312685070
balantidium coli in an hiv-infected patient with chronic diarrhoea. 200312660552
some gastro-intestinal tract parasites in wild de brazza's monkeys (cercopithecus neglectus) in kenya.fresh faecal droppings of wild group of de brazza's monkeys (cercopithecus neglectus), earmarked for translocation, were collected between january and july 1998. the samples were analysed using direct smears, ether-sedimentation and the harada-mori culture techniques for gastro-intestinal tract parasites (git). two species of helminths and three of protozoa were detected. entamoeba coli was found in all 40 samples screened from 11 monkeys. entamoeba histolytica was detected in 71.8% of the total ...200212446101
methods for cultivation of luminal parasitic protists of clinical importance.cultivation of luminal protistan parasites has a long history. in this review we discuss the methods and media that are most widely used for the establishment and maintenance of the following organisms in culture: entamoeba histolytica, giardia intestinalis, trichomonas vaginalis, dientamoeba fragilis, blastocystis hominis, and balantidium coli. while cultivation is of limited importance in the diagnostic laboratory, it is essential to most research laboratories, and it is toward the latter that ...200212097242
autofluorescence microscopy for the detection of nematode eggs and protozoa, in particular isospora suis, in swine faeces.parasites from swine faeces were examined for autofluorescence. oocysts of eimeria polita, e. scabra and isospora suis, cysts of balantidium coli and eggs of oesophagostomum dentatum, strongyloides ransomi and trichuris suis (but not those of ascaris suum) emitted light after excitation with uv light. i. suis oocyst counts in mcmaster chambers utilising autofluorescence were compared to those from conventional bright field microscopy. similarly, faecal smears containing i. suis were examined usi ...200111403385
identification of enteropathogenic escherichia coli in simian immunodeficiency virus-infected infant and adult rhesus macaques.enteropathogenic escherichia coli (epec) was recognized as a common opportunistic pathogen of simian immunodeficiency virus-infected rhesus macaques (macaca mulatta) with aids. retrospective analysis revealed that 27 of 96 (28.1%) animals with aids had features of epec infection, and epec was the most frequent pathogen of the gastrointestinal tract identified morphologically. in 7.3% of animals dying with aids, epec represented the sole opportunistic agent of the gastrointestinal tract at death. ...200111230413
ciliocytophthoria in clinical virology.direct immunofluorescence assays (dfas) are used in the clinical virology laboratory for the rapid detection of viruses. an assessment of the cellularity of specimens submitted for dfa is necessary for the most effective use of this assay. this assessment ensures that an adequate number of the appropriate cells are present for examination. during this assessment, clinical virologists may encounter unfamiliar cellular elements or cellular fragments. one of these elements, ciliocytophthoria, has b ...200010923088
age-dependent occurrence of the intestinal ciliate balantidium coli in pigs at a danish research farm.a cross sectional study of the prevalence and intensity of balantidium coli in pigs was carried out on a danish research farm. the prevalence of b. coli infection increased from 57% in suckling piglets to 100% in most pig groups > or = 4 weeks old. the mean number of cysts per gram faeces (cpg) of pigs aged 12 weeks and younger were < or = 206, whereas pigs aged 28 weeks and > 52 weeks had significantly higher counts of > or = 865 cpg. although some lactating sows had very high cpg's, no signifi ...200010920478
[colonic balantidiasis].balantidium coli is a protozoa that is not usually pathogenic in man, although epidemics have been described in tropical areas. it mainly affects the colon and clinical presentation varies from asymptomatic forms to severe dysenteric syndromes. we present a case of endoscopically diagnosed colonic balantidiasis and review the most important characteristics of this parasite-induced disease.200010804691
cytochemical identification of mucocysts in balantidium coli trophozoites.the mucocyst ultrastructure in b. coli has not been described so far. as demonstrated in this work, cytoenzymatic assays on b. coli with the use of a reaction-detecting membrane-coupled hydrolase, i.e., atp-ase, permitted identification of the mucocysts in the ciliate studied. the shape, size, and location of mucocysts in b. coli trophozoites were found to correspond to descriptions of these structures in other ciliates. the mucocysts were more numerous in b. coli trophozoites isolated from the ...199910723937
parasites in cross-bred pigs in the upper east region of ghana.a cross-sectional study was carried out in the upper east region (uer) of ghana in order to estimate the prevalence of parasitic infections in local cross-bred pigs. out of 60 villages with a human population of 200-1000 inhabitants, 10 villages were randomly selected for the study. the number of pigs varied from 50 to 200 pigs per village. in total 259 faecal samples from growers were collected and examined. ninety-one percent of the animals excreted parasite eggs. among these the prevalence of ...199910628701
the formation of primary and secondary lysosomes in balantidium coli, ciliata.trophozoites, vegetative forms of balantidum coli isolated from pigs affected by acute and asymptomatic balantidiasis were studied. lysosomes and food vacuoles were revealed by cytochemical detection of lysosomal marker, acid phosphatase. the cytoplasm of all the b. coli trophozoites examined was found to contain numerous structures which differed widely in shape, size and location in the cells. one of them was located among the rough endoplasmic reticulum membranes and another one in the vicini ...199910598328
[balantidiasis in a rural community from bolivar state, venezuela].balantidium coli is the etiologic agent of balantidiasis, an infrequent zoonose of worldwide distribution. the objective of the present study was to determine the clinical and epidemiological aspects of balantidiasis in a rural community in the bolivar state in venezuela. fifty persons and 12 pigs were evaluated. fecal samples were analyzed by direct examination and by the methods of faust and willis. the global rate of intestinal parasitoses detected was 88.0% for the human population and 83.3% ...199910488584
the prevalence of balantidium coli infection in fifty-six mammalian species.a total of 375 fecal samples of 56 mammalian species belonging to 17 families of 4 orders were examined for the detection of balantidium coli from december 1994 to august 1995. as a result, b. coli was found from 6 species belonging to 4 families of 2 orders (primates and artiodactyla) of host animals examined. white-handed gibbon (hylobates lar), squirrel monkey (saimiri sciurea) and japanese macaque (macaca fuscata) were new hosts for b. coli. all the wild boar (sus scrofa) and chimpanzee (pan ...199910027167
balantidiasis in aymara children from the northern bolivian altiplano.balantidium coli infection was coprologically studied in 2,124 aymara children 5-19 years of age from the schools of 22 communities of the northern bolivian altiplano over a five-year period. infection with b. coli was found in 11 of the communities surveyed, with prevalences of 1.0-5.3% (overall prevalence=1.2%). the prevalences observed are some of the highest reported and did not differ significantly among the various age groups or between boys and girls. these prevalences, the apparent absen ...19989886201
[a case of coinfection by balantidium coli and hiv in french guiana].a case of balantidial dysentery is reported in a patient infected with the hiv in french guiana. this case is the first described in medical literature. the patient presented also a disseminated histoplasmosis. immunosuppression probably favoured the evolution of asymptomatic carriage to clinical dysentery. this clinical case did not present any complications. treatment with doxycycline had to be carried out for 20 days in order to obtain a clinical and parasitological cure.19989846223
case report of balantidium coli in human from south of tehran, iran.a patient with balantidiasis in an urinary bladder is reported. trichomonas vaginalis were identified and no other cause of the haematuria was apparent. this condition didn't common and may be linked to ectopic balantidium in urinary bladder.19989808912
helminth and protozoan gastrointestinal tract parasites in captive and wild-trapped african non-human primates.the objective of this study was to investigate the gastro-intestinal (git) parasites commonly occurring in captive and wild-trapped (wt) non-human primates (baboons, vervets and sykes) in kenya and compare their prevalence. three hundred and fifteen faecal samples were subjected to a battery of diagnostic tests, namely, direct smear, modified formal ether sedimentation, kato thick smear, harada-mori techniques for parasite detection and culture to facilitate nematode larvae identification. of th ...19989760061
a comparison of nucleic acid content in balantidium coli trophozoites from different isolates.cytophotometric assays were performed on balantidium coli trophozoites isolated from 30 pigs affected by acute balantidiasis (group i) and from 30 pigs with symptom-free balantidiasis (group ii). trophozoites from cultures obtained from group i and ii pig isolates were assayed for comparison. comparative cytophotometric studies on nucleic acids of b. coli trophozoites isolated from acute and symptomless balantidiasis-affected pigs as well as from in vitro cultured trophozoites showed differences ...19979643168
ultrastructural and cytochemical identification of peroxisomes in balantidium coli, ciliophora.peroxisomes of the trophozoites of balantidium coli isolated from pig intestine content were investigated, using ultrastructural and cytochemical techniques. the peroxisomes of b. coli trophozoites from pigs with subclinical balantidiasis are less then 0.8 mm in diameter whereas those from pigs with acute balantidiasis are greater than 0.8 micron in diameter. in all the trophozoites peroxisomes are round, oval or dumb-bell shaped. catalase as an indicative enzyme was detected by cytochemical tec ...19979643167
geophagy as a therapeutic mediator of endoparasitism in a free-ranging group of rhesus macaques (macaca mulatta).parasite levels were determined for 141 members of a naturally formed social group of rhesus macaques living under free-ranging conditions. results indicate that group members harbor trichuris trichiura, balantidium coli, and large numbers of strongyloides fuelleborni. parasite counts decrease significantly with age in this population. females have significantly fewer parasites than males and a significantly lower prevalence of multiple infections. there were no rank effects regarding parasitosi ...19989444324
[growth of balantidium coli populations under in vivo and in vitro conditions].trophozoites of balantidium coli were isolated from the pig's caecum and cultivated in vitro. pigs were divided into two groups: one with the acute balantidiosis and the second--with the asymptomatic balantidiosis. in the first case the biotic potential of protozoans turned out to be higher (the most intensive divisions occurred 24 hours after the second passage). protozoans isolated from pigs with the asymptomatic balantidiosis had lower biotic potential (the most intensive divisions occurred 2 ...19979424938
intestinal manifestations of experimental siv-infection in rhesus monkeys (macaca mulatta): a histological and ultrastructural study.intestinal lesions were studied in 32 rhesus monkeys experimentally infected with different strains of simian immunodeficiency virus sivmac (251/32h, 251/32h-spl and 251/mpbl) by light microscopy, transmission and scanning electron microscopy. a spectrum of primary and secondary manifestations of siv-infection were detected. primary changes included 'siv-enteropathy' in 12 monkeys and virus-induced syncytial giant cell formation (gcf) of the intestine in two animals. a primary virus-induced ente ...19979394615
epidemiologic features of intestinal parasitic infections in italian mental institutions.to determine the prevalence of intestinal parasitic infections in the residents of four italian psychiatric institutions, we examined the stool specimens collected in triplicate from 238 residents, enrolled between may 1995 and may 1996. besides, physician and staff nurses provided data about each resident by standardized questionnaires. parasites were detected in the fecal samples from 128 patients (53.8%). however, in the stool specimens from 106 residents only non-pathogenic protozoa were fou ...19979384273
intestinal parasitism--protozoa and helminths--in primates at the barcelona zoo.the faunistic results regarding intestinal parasitism by protozoa and helminths in 21 primate species (three cebidae, thirteen cercopithecidae, one hylobatidae, one lemuridae, three pongidae) are reported. the primate species were housed in four separate galleries. six faecal samples of each host species were subjected to coprological analysis. fifteen parasite species were detected: 11 protozoa (entamoeba coli, e. chattoni, e. hartmanni, iodamoeba bütschlii, endolimax nana, giardia intestinalis ...19969210027
presence of very high prevalence and intensity of infection with fasciola hepatica among aymara children from the northern bolivian altiplano.coprological studies of school children from four communities in the northern bolivian altiplano were carried out in order to estimate the prevalences and intensities of fasciola hepatica infection. single stool specimens were collected at random from 558 school children (308 boys and 250 girls) aged 5-19 years old. nineteen different parasite species (13 protozoan and six helminths) were detected. of the children examined, 98.7% (96.5-100%) presented infection with at least one parasite species ...19979177091
parasitic contamination of stored water used for drinking/cooking in hyderabad.a study was undertaken to investigate the parasitic contamination of water in hyderabad city, india. a total of 232 samples of water were collected from different places; social welfare hostels, small restaurants, different households, public places like railway stations, bus depots, street food vendors, hand washings from the food handlers, and vegetable washings from vegetable vendors. of these 232 samples 61 samples indicated the presence of pathogenic parasites which include protozoans (cyst ...19959139396
[cytophotometric analysis of trophozoites and cysts of balantidium coli].in trophozoites and cysts of balantidium coli the contents of nucleic acids were compared, with the use of cytochemical methods. there is more rna (nuclear and cytoplasmatic) in trophozoites, but the content of dna is the same in both trophozoites and cysts. some morphometric parameters, allowing to compare trophozoites and cysts of b. coli, were obtained on the basis of cytophotometric determination of the cytochemical reactions' intensity and its computer analysis. these studies showed greater ...19968967075
intestinal parasitism in san cayetano, corrientes, argentina.an epidemiologic study was conducted in san cayetano, a village in the province of corrientes, argentina, to determine the prevalence of intestinal parasitoses in children. eighty-eight households were randomly selected. stool samples were collected from 207 children (72% of the school-age population and 12% of the total village population) over a period of six consecutive days, and were subjected to microscopic examination. of the samples examined, 170 (83%) contained one or more parasites, of ...19968897723
intestinal protozoa.giardia is the best known cause of protozoal gastrointestinal disease in north america, producing significant but not life-threatening gastrointestinal distress and diarrhea. although diagnosis of giardiasis may be challenging, treatment is usually successful. entamoeba histolytica poses a rarer but far more difficult clinical challenge. dysentery caused by e. histolytica may be the most feared intestinal protozoal infection, although cryptosporidium parvum, balantidium coli, isospora belli, sar ...19968644565
zoonotic intestinal parasites of hamadryas baboons papio hamadryas in the western and northern regions of saudi arabia.six hundred and thirty-three faecal samples were randomly collected and examined for ova and cysts of intestinal parasites from five groups of hamadryas baboons of different population densities, with different human contact and in different ecological conditions (al-baha, turabah and al-taif in south-western and al-rihat and al-akhal in north-western saudi arabia). nine parasites were recorded (giardia lamblia, entamoeba histolytica, escherichia coli, balantidium coli, enterobius sp., trichuris ...19958544227
balantidium coli (vestibuliferida: balantidiidae): the persistence of an old problem. 19938303045
detection of neospora caninum in tissue sections using a murine monoclonal antibody.a murine monoclonal antibody (mab 6g7), isotype igg2a, produced against tachyzoites of neospora caninum (isolate nc-1) reacted specifically with tachyzoites of n. caninum in an indirect immunofluorescent antibody test. mab 6g7 did not react with tachyzoites of toxoplasma gondii, sporozoites of isospora suis, eimeria bovis, or e. tenella, or merozoites of e. bovis in the indirect immunofluorescent antibody test. mab 6g7 reacted positively with both tachyzoites and bradyzoites of n. caninum in an ...19938286458
amebiasis and "nonpathogenic" intestinal protozoa.infection with single or multiple species of intestinal protozoa is common in humans and can result in either asymptomatic colonization or symptoms of intestinal disease. entamoeba histolytica serves as a paradigm for invasive colonic protozoal infection. the key to diagnosis and treatment of amebiasis is knowledge of the epidemiologic risk factors and clinical manifestations, a rational approach to diagnosis, and an understanding of the sites of action and uses of anti-amebic drugs. this knowle ...19938254155
[drinking water and parasites].entamoeba histolytica, giardia lamblia, cryptosporidium parvum, isospora belli, balantidium coli, and microsporidia spp. are cosmopolitan parasites. they often cause diarrheal diseases. the waterborn transmission of all these parasites is possible (41). surface water supplies used for drinking water are potential sources of contamination. giardia lamblia and cryptosporidium spp. have received great attention in industrialized countries during the last years because they are the etiological agent ...19938253478
the prevalence of intestinal protozoa in wild and domestic pigs.we examined faecal samples from 842 domestic and 91 wild pigs in order to record the prevalence of intestinal protozoa. we used staining of faecal smears by noller-westphal-gönnert method, cultivation in modified les broth and microscopical examination of native preparations using small magnification (for detection of balantidium coli). moreover, the faeces from wild pigs were examined by flotation in sheather's sugar solution for detection of coccidia. we found 8 coccidian species in the wild p ...19948073586
diarrhoea in piglets and monkeys experimentally infected with balantidium coli isolated from human faeces.ten piglets and four monkeys free from balantidium were dosed with human faecal homogenate which contained 1.2 x 10(4)-4.8 x 10(4) b. coli cysts. the infection resulted in severe diarrhoea in piglets 1-6 and hydrocortisone-treated monkeys 1-2, moderate diarrhoea in piglets 7-10 and a subclinical infection in monkeys 3-4. in piglets 1-3 and monkeys 1-2, heavy infection of the intestinal mucosa extended from the terminal ileum to the rectum and the mucosa was severely damaged. in piglets 4-10, inf ...19957861483
the prevalence of isospora suis and strongyloides ransomi in suckling piglets in the netherlands.faecal samples from suckling piglets from 113 litters on 25 farms in the netherlands were examined to study the prevalence of gastrointestinal parasites, in particular strongyloides ransomi and isospora suis. s. ransomi was not found but i. suis was demonstrated in 17 of the 25 farms and in 41 out of 77 litters of these farms (53%). no other parasites were found. on the basis of these results, a longitudinal study on the incidence and significance of i. suis was performed on 10 farms (5 litters/ ...19947740744
[report on the first nationwide survey of the distribution of human parasites in china. 1. regional distribution of parasite species].a nationwide (taiwan province not included) survey of the distribution of human parasites in china during 1988-1992 was conducted under the auspices of the ministry of public health, with stratified masses randomly sampling. a total of 2,848 pilot sites in 726 counties with a population of 1,477,742 were surveyed, according to unified standard, unified diagnostic method and control quality. the overall infection rate of parasites was 62. 632%. among them, the infection rate was over 50% in 17 pr ...19947720194
epidemiologic studies among amerindian populations of amazonia. iii. intestinal parasitoses in newly contacted and acculturating villages.the prevalences of intestinal parasites among the residents of three south american indian villages in the process of acculturation were compared with those found in earlier unpublished surveys in two newly contracted village.s although one individual in an acculturating village harbored 11 different intestinal parasites, in general the average number of different parasitic species carried per person was somewhat higher in the newly contacted villages. helminth egg counts, performed on direct sm ...19807406103
aspects of intestinal parasitism in villagers from rural peninsular india.in 1977, a parasitological survey was undertaken of stool samples collected from 335 people from 5 villages in semi-arid regions of peninsular india. stools, which were collected from various individuals in a stratified sample of 40 matched households from each village, were examined by standard diagnostic procedures. eggs of ascaris lumbricoides and protozoan cysts, which were identified on morphological grounds as belonging to entamoeba spp., were most common. other protozoan cysts were consid ...19817329725
experimental infection of pigs with oesophagostomum dentatum: pathogenesis and parasitology of repeated mass infection.pigs receiving a limited ration of 1 kg commercial feed per day were infected daily with 50,000 oesophagostomum dentatum larvae. the animals exhibited serious diarrhoea and anorexia. although there was neither anaemia nor hypoproteinaemia, there was a significant decrease in plasma sodium and an increase in blood urea nitrogen at the end of the experiment. large numbers of third and fourth stage larvae were found in the ileal, caecal and colonic mucosae. only fourth stage larvae, never adults, w ...19817313309
epizootic of balantidiasis in lowland gorillas.acute enteritis characterized by watery diarrhea and lethargy occurred in 4 lowland gorillas (gorilla gorilla gorilla) during a 5-week period at the los angeles zoo. numerous trophozoites of balantidium coli were seen in fresh feces from each gorilla. potentially pathogenic bacteria were isolated from 1 fecal sample. results of fecal flotation examinations were negative for eggs of metazoan parasites. the gorillas were treated with antibiotics and metronidazole or paromomycin, or both. the most ...19827174457
diagnostic exercise. eimeria caviae infection with concurrent balantidium coli infection. 19827078069
dysentery caused by balantidium coli--report of two cases.the authors present two cases of dysentery caused by balantidium coli with numerous colonic ulcers, documented by colonoscopy and diagnosed by endoscopic biopsies. the positive rectal exudate in one case permitted the isolation and ultrastructural study of the trophozoites. the good response to tetracyclines in the younger patient was not repeated in the older patient, who died in septic shock despite antibiotic therapy. the authors report the endoscopic findings and comment on the differential ...19836884287
[invasiveness of the cysts of balantidium coli m. in golden hamsters (mesocricetus auratus)]. 19836868610
the incidence of balantidium coli among local and exotic pigs in ibadan, nigeria. 19836665266
balantidium coli in cervico-vaginal cytology. a case report. 19836646854
[effect of various external factors on encystment and excystment of balantidium coli (m)]. 19846537104
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