status of intestinal parasite infections in inhabitants of palmar, guayas province, ecuador.status of intestinal protozoan and helminthic infections was surveyed in mestizo population living in rural parish of palmar and its nearby recintos(villages). three of the surveyed villages were at the pacific coast and 5 villages were in inner pasture land, located about 100 km west of guayaquil, the second largest city in ecuador. one stool sample was examined by one cellophane thick smear for helminth ova and one direct smear stained with lugol's iodine solution for protozoan cysts. of 325 p ...19902271503
[blastocystis hominis, a parasitic cause of diarrhea].the frequency of detection of blastocystis hominis in the stools of patients with gastroenteritis is reported. over a twelve-month period b. hominis was identified in the stools of 69 (4.72%) out of 1460 patients. of these 69 positive samples, 45 (65%) contained b. hominis alone and in 24 (35%) it was present together with other parasites such as lamblia intestinalis, entamoeba histolytica, entamoeba coli, endolimax nana, iodamoeba buetschlii, ancylostoma duodenale, ascaris lumbricoides, trichur ...19892717900
a double-antibody sandwich elisa for the detection of entamoeba histolytica antigen in stool samples of humans.a double-antibody sandwich elisa was developed to detect detergent-solubilized antigens of entamoeba histolytica in stool samples of humans. the test system was evaluated for its methodical and diagnostic sensitivity and specificity. in recovery experiments the lower limit of detection was 400 ng e. histolytica (hk9) protein/ml stool, corresponding to approximately 2000 amoebic trophozoites/ml stool. samples of 97 patients with suspected intestinal amoebiasis were examined. specific antigens wer ...19872888183
an enzyme-linked immunosorbent assay for the detection of entamoeba histolytica antigens in faecal material.this paper describes a method for the detection of entamoeba histolytica antigens in stool samples using a multi-layer elisa. the method is sensitive and specific, showing no interference with other intestinal parasites, e.g. e. coli, e. hartmanni, endolimax nana, iodamoeba buetschlii, hymenolepis nana, giardia lamblia, trichomonas and ascaris. the method provides a rapid and simple screening assay for e. histolytica infections and should assist in diagnosis and epidemiological studies of the di ...19872895514
a survey of gastrointestinal parasites in ogun state, southwest study the epidemiology of intestinal parasites in ogun state, nigeria, 479 stool specimens were examined at a hospital in abeokuta during the rainy season in june 1986. intestinal helminths and/or protozoa were present in 297 samples (62%). 41.1% of the specimens showed a single infection, 34% showed double, 20% triple and 5% quadruple infection. the most commonly found worm was ascaris lumbricoides (in 40% of specimens), followed by trichuris trichiura (23.2%), hookworms (19.2%), strongyloid ...19883178337
[human intestinal parasites in subsaharan africa. ii. sao tomé and principe].in 1983 the authors carried out a survey in the democratic republic of são tomé and principe, analysing 1050 specimens of stools collected among the population from apparently healthy subjects chosen at random and in a number proportional to the distribution of the population in the regions of the country (about 1% of the population was examined). the examined subjects were divided into 3 age groups (0-3, 4-12, more than 12 years old), to have homogeneous groups in relation principally to modali ...19873508506
[human intestinal parasites in subsaharan africa. iii. pemba island (zanzibar-tanzania)].the authors carried out a coprological survey in pemba island, analysing, by modified ritchie technique, 413 stools samples. the specimens were collected among the population from apparently healthy subjects chosen at random in a number equal to 2% of the whole population. the examined subjects were divided in 3 age groups, 211 were males, 202 females. the following results were obtained (in order of prevalence): a) protozoa: entamoeba coli 35.6%, giardia intestinalis 5.6%, endolimax nana 4.3%, ...19873508507
[iodamoeba buetschlii]. 19734735161
intestinal parasites in homosexual men.a study on the prevalence of intestinal parasites in a group of homosexual men, attending a sexually-transmitted diseases clinic in glasgow, was undertaken. of 118 men examined over an eight-month period, four, one of whom had symptoms of dysentery, were found to be infected with entamoeba histolytica. cysts of iodamoeba buetschlii were also found in the stool of one of these men. a further two patients had giardiasis, and 11 men had enterobiasis. the importance of an awareness of these conditio ...19806259724
the epidemiology of entamoeba histolytica in a rural and an urban area of mexico. a pilot survey ii.stocks of intestinal amoebae grown in monoxenic culture, were compared against each other and against those previously reported from mexico city. these were isolated from subjects in san cristobal de las casas, chiapas (rural area) and hospital patients in merida, yucatan (urban area). electrophoretic patterns of the four enzymes: glucose phosphate isomerase (gpi), phosphoglucomutase (pgm), l-malate: nadp+ oxido-reductase (oxalacetate-decarboxylating) (me) and hexokinase (hk) demonstrated the pr ...19826285556
safety and efficacy of diphetarsone in the treatment of amoebiasis, non-pathogenic amoebiasis and trichuriasis.eighty-nine patients infected with entamoeba histolytica, non-pathogenic amoebae or trichuris trichiura were studied prospectively to determine the safety and efficacy of diphetarsone therapy. an additional 75 patients were studied retrospectively to assess further the efficacy of diphetarsone in the treatment of e. histolytica cyst passers. side effects were noted in 9% and included gastrointestinal upset, lightheadedness and headache. transient liver function abnormalities were recorded in 5.6 ...19836304952
[contribution to the knowledge of intestinal protozoa infestation in the hospital population of barcelona (author's transl)].this report concerns the analysis of 650 fecal samples submitted for parasitic investigation to the microbiology service of the hospital de la santa creu i sant pau of barcelona. the samples were analyzed by the technique of fixation and direct observation of sapero and lawless (mifd), and with the biphasic concentration method of blagg et al (mifc). intestinal protozoa were detected in 183 samples (28.2%), with a total of 232 protozoosis uncovered. the specific analysis gave the following resul ...19817206888
[prevalence of infection by intestinal helminths and protozoa in school children from a coastal locality in the province of valdivia, chile].during july-august 1989, 219 coprological samples from primary school children from niebla and los molinos localities (39 degrees 52's, 73 degrees 26'w) in the coast of province of valdivia, chile, were analysed. prevalence % (in parentheses) of infection by intestinal protozoa and helminths were the followings: entamoeba histolytica: (18.0), entamoeba coli (34.0), endolimax nana (34.4), iodamoeba buetschlii (7.4), blastocystis hominis (64.3), giardia intestinalis (27.9) chilomastix mesnili (0.8 ...19947654292
practice guidelines for ordering stool ova and parasite testing in a pediatric population. the alberta children's hospital.a comprehensive utilization review was done of all stool ova parasite examinations performed at a pediatric hospital during a 3-year period from june 1, 1989 to july 1, 1992. a total of 2,652 stool specimens were surveyed from 1,532 children. forty-one percent (1,081) of the workload was from inpatients, 37% (976) was from emergency room (er) visits/other outpatients, and 22% (233) was from patients attending the gastroenterology (gi) clinic. the prevalence of enteric parasites in hospitalized c ...19957677114
[a coprological study of intestinal infections in northern morocco (provinces of tangier, tetuán and larache)].an epidemiological study on intestinal parasites has been carried out in northern morocco (province of tangier, tetuan and larache). a comparative study has been made at a provincial, city and areas (urban and rural) level. also the spi (simple parasitism index) and the cpi (comparative parasitism index) distribution.19947716431
[intestinal parasite and clonorchis sinensis infection among the inhabitants in the upper stream of taechong dam, kumgang (river)].the prevalence of intestinal parasites and clonorchis sinensis infection was observed among inhabitants in the upper stream of kumgang (river) from january to october 1991. a total of 743 fecal specimens was examined by cellophane thick smear and formalin-ether concentration technique. the parasite positive rate including helminth eggs and protozoan cysts was 40.8%, the positive rates for every species were: clonorchis sinensis 30.8%, metagonimus spp. 14.5%, fasciola spp. 0.7%, taenia spp. 1.5%, ...19947834237
intestinal parasitic infections in campalagian district, south sulawesi, indonesia.intestinal parasitic infections were surveyed in the inhabitants of 3 coastal and 2 inland villages of campalagian district, south sulawesi, indonesia, in july 1992. a total of 398 fecal samples were examined by using kato-katz thick smear, harada-mori culture and agar-plate culture techniques. protozoan cysts were examined by formalin ether concentration technique on 380 fecal samples. soil-transmitted helminth infections were highly prevalent with the overall positive rates as follows: ascaris ...19938266235
[human infection by intestinal protozoa and helminths in calbuco county, x region, chile, 1997].by the performance of parasitological examination of one fecal sample per individual, a total of 256 persons from a rural county in the x region (41 degrees 50 minutes south lat., 73 degrees 05 minutes west long.) were studied. the general rates of infection by intestinal parasite and/or commensal protozoa and helminths found were: giardia intestinalis 14.1%, entamoeba histolytica 11.7%, blastocystis hominis 36.0%, entamoeba coli 9.8%, endolimax nana 16.4%, iodamoeba buetschlii 1.2%, chilomastix ...19979497539
entamoeba dispar, but not e. histolytica, detected in a colony of chimpanzees in japan.chimpanzees (pan troglodytes) residing in the kumamoto primate research park, sanwa kagaku kenkyusho, were surveyed for the presence of intestinal parasites. stool samples from 107 chimpanzees were examined by microscopy after formalin-ether sedimentation. of these animals, 100 were infected with at least 1 species of ameba. the positivity rates recorded were as follows: entamoeba coli, 88%; e. histolytica/e. dispar, 48%; e. hartmanni, 15%; iodamoeba buetschlii, 8%; endolimax nana, 4%; and entam ...200010935902
high prevalence of infection with entamoeba dispar, but not e. histolytica, in captive macaques.a total of 268 nonhuman primates (20 species) kept in the primate research institute, kyoto university, japan, were surveyed for intestinal amebas. total positive rates as based on the presence of cysts in the stool following formalin-ether sedimentation were as follows: entamoeba histolytica/e. dispar, 53%; e. coli, 34%; e. hartmanni, 34%; iodamoeba buetschlii, 25%; endolimax nana, 8%; and e. chattoni, 3%. positive rates were higher in old world monkeys and lower in new world monkeys. all the 1 ...200111199843
gastrointestinal parasites of mountain gorillas (gorilla gorilla beringei) in the parc national des volcans, rwanda.ninety-eight fecal samples were collected from 74 free-living mountain gorillas (gorilla gorilla beringei) from the parc national des volcans, rwanda, between july 1995 and january 1997 and examined for parasites by sheather's sugar and zinc sulfate flotation methods, trichrome staining, and larval cultures. all samples contained at least one parasite. seventeen endoparasites were identified, including eight protozoa, seven nematodes, one cestode, and one trematode. two species of arthropod mite ...200011237138
a hyper-parasite of iodamoeba buetschlii from the rhesus monkey, macaca mulatta, and the domestic pig. 196514292556
frequency of giardia lamblia among children in dohuk, northern iraq.out of 1261 stool specimens collected from children in dohuk city, northern iraq, the prevalence of giardia lamblia infection was 38.5%. the highest rate of infection was in orphan care centres (48.1%) and the lowest in the paediatric hospital (31.3%). the age group 10-12 years had the highest rate (81.2%) and 7-9 years the lowest (22.9%); boys had a higher rate than girls. some infected samples (70/486) showed double or triple infections and g. lamblia was combined with hymenolepis nana, blasto ...200617333793
patterns of gastro-intestinal parasites and commensals as an index of population and ecosystem health: the case of sympatric western chimpanzees (pan troglodytes verus) and guinea baboons (papio hamadryas papio) at fongoli, senegal.the exponential decline of great apes over the past 50 years has resulted in an urgent need for data to inform population viability assessment and conservation strategies. health monitoring of remaining ape populations is an important component of this process. in support of this effort, we examined endoparasitic and commensal prevalence and richness as proxies of population health for western chimpanzees (pan troglodytes verus) and sympatric guinea baboons (papio hamadryas papio) at fongoli, se ...201120853397
changing trends in intestinal parasitic infections among long-term-residents and settled immigrants in qatar.abstract:201020946623
gastrointestinal parasites of the chimpanzee population introduced onto rubondo island national park, tanzania.the release of any species into a novel environment can evoke transmission of parasites that do not normally parasitize the host as well as potentially introducing new parasites into the environment. species introductions potentially incur such risks, yet little is currently known about the parasite fauna of introduced primate species over the long term. we describe the results of long-term monitoring of the intestinal parasite fauna of an unprovisioned, reproducing population of chimpanzees int ...201020014274
[non-pathogenic intestinal amoebae: a clinical-analytical overview].human beings can be parasitized by various species of intestinal amoebae. entamoeba histolytica is the only intestinal amoeba recognized to be pathogenic, while other amoeba species, e. dispar, e. moshkovskii, e. hartmanni, e. coli, e. polecki, endolimax nana and iodamoeba buetschlii are considered to be non-pathogenic. the aim of this review is to synthesize the main morphological characteristics of the trophozoite and cyst stages of each amoeba as the basis for precise microscopical diagnosis. ...201121458707
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