| chronic diarrhea in returing travelers: intestinal parasitic infection with the fluke metagonimus yokogawai. | an unusual intestinal infection with the parasite metagonimus yokogawai was acquired by an american traveling in the orient. diarrhea began abroad, and recurred at intervals until she was seen 1 1/2 years later. stool examinations resulted in the recovery of small operculated ova characteristic of intestinal or biliary fluke infection. treatment with hexylresorcinol failed to eradicate the infection, but subsequent use of tetrachloroethylene was successful and facilitated recovery of adult paras ... | 1978 | 725630 |
| [antigenic localities in the tissues of metagonimus yokogawai in the period of growth]. | in order to observe the antigenic localization in the tissues of metagonimus yokogawai in growth stages, immunogoldlabeling method was applied to using serum of the cat which infected with isolated metacercariae from plecoglossus altivelis. the sectioned worm tissues from each growth stages were embedded in lowicryl hm 20 medium, stained with infected serum igg and protein a gold complex (particle size: 12 nm) and observed by electron microscopy. in the worm tissues of all experimental groups, t ... | 1992 | 1297422 |
| [a surgical case of thoracic aortic aneurysm due to takayasu's aortitis associated with ulcerative colitis]. | we experienced a case of thoracic aortic aneurysm due to takayasu's aortitis associated with ulcerative colitis. steroid was medicated to control inflammation and operation was performed. the ascending aorta, aortic arch, brachiocephalic artery, and left carotid artery were replaced by artificial graft. we made elephant trunk type anastomosis at the distal side of the graft to provide for growth of the aneurysm after operation. this was a rare case considered autoimmune overlapping syndrome, and ... | 1992 | 1354682 |
| [antigenic localities in the tissues of metagonimus yokogawai observed by immunogoldlabeling method]. | in order to determine the antigenic localization in the tissues of the adult metagonimus yokogawai, immunogoldlabeling method was applied using serum immunoglobulins(igg) of cats which were infected with isolated metacercariae from plecoglossus altivelis. the sectioned worm tissue was embedded in lowicryl hm 20 medium and stained with infected serum igg and protein a gold complex(particle size: 12 nm). it was observed by electron microscopy at each tissue of the worm. the gold particles were obs ... | 1991 | 1786251 |
| intestinal trematodes infecting humans in korea. | sixteen species of intestinal trematodes have been recovered from humans in korea. they include 10 species of the family heterophyidae (metagonimus yokogawai, m. takahashii, heterophyes nocens, h. heterophyes, h. dispar, heterophyopsis continua, pygidiopsis summa, stellantchasmus falcatus, centrocestus armatus, and stictodora fuscatum); one species of diplostomidae (fibricola seoulensis); three species of echinostomatidae (echinostoma hortense, e. cinetorchis, and echinochasmus japonicus); one s ... | 1991 | 1822879 |
| [a numerical taxonomic study on heterophyid trematodes]. | a numerical taxonomy was studied on a group of heterophyid trematodes and analysis was made on the following species: metagonimus yokogawai (3 otu, operational taxonomic unit), metagonimus miyata type (3 otu), metagonimus takahashii (2 otu), heterophyes dispar (2 otu), heterophyes heterophyes (1 otu), heterophyes nocens (2 otu), heterophyopsis continua (1 otu), pygidiopsis summa (3 otu), stellantchasmus falcatus (2 otu) and stictodora lari (2 otu). twenty-six morphological characters were measur ... | 1991 | 1911627 |
| activities of brush border membrane bound enzymes of the small intestine in metagonimus yokogawai infection in mice. | the present study intended to evaluate the influences of metagonimus yokogawai on the activities of brush border membrane bound enzymes of the small intestine. mice were infected with 500 metacercariae respectively, and the worm recovery, morphological changes and enzyme activities were observed chronologically. a part of them were followed after the treatment. recovered worms decreased in number continuously after the infection, and they were less than 10% after 2 weeks and almost zero after 28 ... | 1991 | 1911629 |
| [a survey on the epidemiological factors of clonorchiasis in the pohang industrial belt along the hyungsan river, kyongsangbuk-do]. | the employees at the pohang industrial area, where clonorchis sinensis has been known to be endemic along the hyungsan river, were examined parasitologically for clonorchiasis and a part of the infected cases were surveyed with a questionnaire to outline the recent infection status of c. sinensis and epidemiological parameters in the area. total of 3,180 cases were tested by intradermal inoculation of c. sinensis antigen (green cross co., korea), and 834 (26.2%) were found positive. out of the p ... | 1990 | 2099175 |
| [infection status of sweetfish from kwangjung-stream and namdae-stream in yangyang-gun, kangwon-do with the metacercariae of metagonimus yokogawai]. | this study was performed to observe the infection status of sweetfish, caught from kwangjung-stream and namdae-stream in yangyang-gun, kangwon-do in august 1989, with the metacercariae of metagonimus yokogawai. all of 28 sweetfish from kwangjung-stream were infected with the metacercariae of m. yokogawai. the number of metacercariae in a fish ranged 89-521(224 on average), and the number of larvae/g of flesh was 12 approximately 55 (22 on average). on the other hand, no metacercariae were detect ... | 1990 | 2099179 |
| intestinal trematodes of humans in korea: metagonimus, heterophyids and echinostomes. | ten species of the trematode family heterophyidae (metagonimus yokogawai, m. takahashii, heterophyes nocens, h. heterophyes, h. dispar, heterophyopsis continua, pygidiopsis summa, stellantchasmus falcatus, centrocestus armatus and stictodora fuscatum), and 3 species of the family echinostomatidae (echinostoma hortense, e. cinetorchis and echinochasmus japonicus) have been found to infect humans in korea. biological and epidemiological studies on the above species have shown that metagonimus, het ... | 1990 | 2133416 |
| species determination of eggs of opisthorchiid and heterophyid flukes using scanning electron microscopy. | eggs of opisthorchiid flukes have very characteristic muskmelon-like surface structure of their shells and can be differentiated using this mark from eggs of heterophyid flukes. surface structure and morphological details in operculum and abopercular end can be observed using scanning electron microscopy. eggs recorded very often in stool of laotians belong mostly to opisthorchis viverrini and sporadically to metagonimus yokogawai. | 1990 | 2337251 |
| [preliminary study on praziquantel in the treatment of echinochasmus perforliatus and metagonimus yokogawai infections]. | | 1988 | 3219943 |
| intestinal pathology in human metagonimiasis with ultrastructural observations of parasites. | a human case of intestinal metagonimiasis that was incidentally found during the histological examination of a resected segment of jejunum was described. the small adults trematode of metagonimus yokogawai were found free in jejunal lumen as well as impacted in intervillous spaces. histologically intestinal lesions were massive lymphoplasmacytic and eosinophilic infiltration in stroma, erosion of neanby enterocytes, goblet cell depletion and occasional villous edema. scanning electron microscopy ... | 1988 | 3267367 |
| [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 ... | 1987 | 3508506 |
| [effect of water temperature on the egress of metagonimus yokogawai cercaria from mollusks]. | | 1987 | 3600510 |
| [biology of metagonimus yokogawai katsurada in the upper amur river valley]. | | 1974 | 4836614 |
| in vitro cultivation of the heterophid trematode, metagonimus yokogawai, from the metacercaria to adult. | | 1970 | 5311750 |
| [metacercaria of metagonimus yokogawai var. takahashi infesting freshwater fish of niigata prefecture]. | | 1965 | 5894977 |
| ultrastructural investigations on the effects of praziquantel on human trematodes from asia: clonorchis sinensis, metagonimus yokogawai, opisthorchis viverrini, paragonimus westermani and schistosoma japonicum. | the effect of praziquantel (biltricide) on the ultrastructure of trematodes pathogenic to man in asia was investigated in: clonorchis sinensis, opisthorchis viverrini, schistosoma japonicum, metagonimus yokogawai, and paragonimus westermani. the different parasites were isolated from their respective experimental hosts and uniformly incubated for 5, 15, 30 or 60 min at 37 degrees c in medium tc 199 containing 0, 1, 10 or 100 micrograms praziquantel/ml. all parasites exposed to praziquantel were ... | 1983 | 6338885 |
| therapy of fluke infections in the past. a review. | chemotherapy of trematode infections has been studied intensively in the past. the compounds so far used for the treatment of those parasitic infections were not satisfactory, however, because of their poor tolerability and/or their limited anthelmintic efficacy. since the introduction of tartar emetic in 1918, a number of antimonial as well as non-antimonial preparations have been used for the treatment of schistosomiasis. in the treatment of clonorchiasis with antimony preparations, gentian vi ... | 1984 | 6391498 |
| the profile of the trematodicidal compound praziquantel. | from the start onwards of testing praziquantel (2 - cyclohexyl - carbonyl - 1,2,3,6,7,11 b - hexahydro - 4h - pyrazino[2,1-a]isoquinolin-4-one, embay 8440, biltricide) proved to be very promising. by testing numerous trematode species in different host animals, high efficacy was established. there were no limitations due to the geographical origin of all those parasite species. pharmacokinetic studies in animals and man showed similarly favourable results. the compound passes the blood-liquor ba ... | 1984 | 6391500 |
| increase of permeability in the intestinal mucosa of mice infected with metagonimus yokogawai. | | 1984 | 6521150 |
| metagonimiasis in korea. | of the intestinal trematode infections in korea, metagonimiasis is the most important under public health aspects. in a nationwide survey in 1981, at least 450,000 people (1.2%) were found infected. the endemic areas are scattered along rivers which run to the southern and eastern coast, where more than 20% of villagers are commonly infected. the snail hosts of metagonimus yokogawai are either semisulcospira spp. or koreanomelania spp. the fish hosts are sweetfish (plecoglossus altivelis) and ma ... | 1984 | 6542397 |
| [technics for detection of the larval forms of metagonimus yokogawai, paragonimus miyazakii and anisakis spp. in the second intermediate hosts]. | | 1984 | 6737724 |
| studies on trematodes of the family heterophyidae (odhner, 1914) in iran: 1. preliminary epidemiological surveys in man and carnivores in khuzestan. | trematodes of the family heterophyidae in man and carnivores were studied in khuzestan, south-west iran. eight hundred and eleven stool samples from a population of 3400 in 13 villages in a swampy area located in central khuzestan were examined by the formalin-ether concentration technique. the following helminths were found: ascaris lumbricoides 7%, trichostrongylus spp. 53%, hookworms 4+, trichuris trichiura 5%, hymenolepis nana 12% and heterophyid spp. 8%. post-mortem examination of carnivore ... | 1981 | 7310107 |
| [the epizootiological problems of trematodiases in the maritime territory]. | five species of trematodes: metagonimus yokogawai, m. katsuradai, centrocestus armatus, nanophyetus salmincola schikhobalowi and paragonimus westermani ichunensis which are able to infect man have been found to develop with the participation of mollusks of the juga genus from the rivers of the maritime territory. some epizootiological aspects of the infections caused by these trematodes are considered in the paper. | 1994 | 7799852 |
| [chronological observation on intestinal histopathology and intraepithelial lymphocytes in the intestine of rats infected with metagonimus yokogawai]. | the relationship between the intestinal histopathology and number and position of intraepithelial lymphocytes (iel) was observed chronologically in the small intestine of rats experimentally infected with metagonimus yokogawai. fifteen sprague-dawley rats were orally infected each with 3,000 metacecariae, and 3 were kept uninfected for controls. three rats each were sacrificed on the day 5, 10, 15, 24 and 70 post-infection (pi) and samples of the small intestine, 5 cm, 10 cm, 20 cm and 70 cm pos ... | 1994 | 7834238 |
| egg positive rates of clonorchis sinensis and intestinal helminths among residents in kagye-ri, saengbiryang-myon, sanchong-gun, kyongsangnam-do. | stools of the residents in a village in saengbiryang-myon, sanchong-gun, kyongsangnam-do were examined for the eggs of intestinal helminths. in 1987, infection rate of 76 residents by clonorchis sinensis was 80.3% with mean eggs per gram of feces (epg) 27,781. c. sinensis-infected persons were treated once with praziquantel 60 mg/kg, q.i.d. seventeen persons (22.4%) infected by metagonimus yokogawai was coinfected with c. sinensis. in 1993, c. sinensis egg positive rate was 48.4% with mean epg 5 ... | 1994 | 7834245 |
| [second report on intestinal parasites among the patients of seoul paik hospital (1984-1992)]. | the results of fecal examination for helminth eggs and protozoan cysts in seoul paik hospital during 1984-1992 are reported. fecal specimens of a total of 52,552 out- or inpatients were examined by formalin-ether sedimentation and/or direct smear method. the overall egg positive rate of helminths was 6.5% and the cyst positive rate of protozoa 2.5%. the egg positive rate (number of positive cases) for each species of helminth was; clonorchis sinensis 3.2% (1,667), trichuris trichiura 2.0% (1,089 ... | 1994 | 8167105 |
| [intestinal flukes of genus metagonimus and their second intermediate hosts in kangwon-do]. | this study investigate the epidemiological feature of metagonimus infection in kangwon-do (province). the average infection rate of the surveyed inhabitants was 7.8% (83 positives out of 1, 067 examinees) by stool examination; male, 11.4% and female, 3.2%, respectively. the egg positive rate in residents in the som river area was 7.3%, that of the chuchon river area 6.3%, the pyongchang river area 12.8%, the tong river area 3.8%, the hongchon river area 9.8%, and the ohsip stream area of samchok ... | 1993 | 8297890 |
| [worm recovery rate and small intestinal lesions of albino rats coinfected with fibricola seoulensis and metagonimus yokogawai]. | worm recovery rates and pathologic changes in small intestine of albino rats were observed after concurrent and challenge infections with metacercariae (mc) of fibricola seoulensis and metagonimus yokogawai, and compared with those of single infection groups. albino rats in concurrent infection group were killed 20 days after feeding with 1,000 mc of each fluke. rats in challenge infection group were fed with 1,000 mc of f. seoulensis and challenged by 1,000 mc of m. yokogawai 10 days after prim ... | 1993 | 8343452 |
| mucosal mast cell responses to experimental metagonimus yokogawai infection in rats. | intestinal mucosal mast cell (mmc) responses were studied in rats experimentally infected with metagonimus yokogawai (digenea: heterophyidae). twenty sprague-dawley rats were fed each 2,500 metacercariae isolated from the sweetfish and sacrificed on the week 1, 2, 3 and 4 post-infection (pi). recovery of worms was performed from the small intestine of each rat. to visualize the mmcs, duodenal and jejunal (upper, middle and lower) tissue sections were made and stained with alcian blue/safranine-0 ... | 1993 | 8343454 |
| antigenic protein fractions of metagonimus yokogawai reacting with patient sera. | antibody test is sometimes necessary for the diagnosis of acute human metagonimiasis because eggs may not be detected in stool. the antibody test (elisa) was evaluated for its significance by reacting human sera from clinically diagnosed metagonimiasis, fascioliasis, clonorchiasis and paragonimiasis with 4 crude extracts of metagonimus yokogawai (metacercariae), adults of fasciola hepatica, clonorchis sinensis and paragonimus westermani. by elisa, 10 of 11 metagonimiasis sera showed the highest ... | 1993 | 8512898 |
| effects of gamma-irradiation on the survival and development of metagonimus yokogawai metacercariae in rats. | to evaluate the feasibility of irradiation as a control measure for metagonimiasis, the metacercariae of metagonimus yokogawai were irradiated with gamma ray, either after isolation from the sweetfish (plecoglossus altivelis) or in situ of the fish, and their survival and development in rats were observed at 7 days post-infection. the radiation dose varied from 5 to 100 gy for the metacercaria-irradiation group and from 5 to 500 gy for fish-irradiation group. the results showed that the worm rec ... | 1995 | 8591007 |
| invasion of metagonimus yokogawai into the submucosal layer of the small intestine of immunosuppressed mice. | metagonimus yokogawai was found deeply invaded into the submucosa of the small intestine of mice (icr) when they were immunosuppressed by prednisolone injection. experimental groups consisted of control, fluke infection (1,800 metacercariae per mouse), and fluke infection plus immunosuppression. in fluke infection group, many worms were found sectioned in the intervillous space of the jejunum and ileum at 6 hrs, 12 hrs, and 1 day after infection, and pathological changes characterized by villous ... | 1995 | 8591009 |
| one human case of natural infection by heterophyopsis continua and three other species of intestinal trematodes. | the third human case of natural infection by heterophyopsis continua in korea was found in chinju, kyongsangnam-do. the case was a 53-year-old man. he used to eat raw brackish and fresh water fish. after praziquantel treatment and purgation, h. continua were collected from the diarrheal stool together with metagonimus yokogawai, heterophyes nocens and echinostoma hortense. his clinical complaints were indigestion, epigastric discomfort, poor appetite and fatigue. the complaints were considered r ... | 1996 | 8820745 |
| expression patterns of proliferating cell nuclear antigen in the small intestine of mice infected with metagonimus yokogawai and metagonimus miyata type. | genus metagonimus has been a subject of taxonomic debates for several years. in morphological aspects, m. yokogawai has been thought to have three subtypes, namely yokogawa type (m. yokogawai in strict sense), miyata type and koga type, but differences in the intestinal pathology induced by these subtypes have not been studied yet. in this study we compared the pathological reactions induced by m. yokogawai and metagonimus miyata type using proliferating cell nuclear antigen (pcna) index. metace ... | 1997 | 9446904 |
| different rapd patterns between metagonimus yokogawai and metagonimus miyata type. | genomic dna from metagonimus yokogawai and metagonimus miyata type was amplified by polymerase chain reaction based on the random amplification of polymorphic dna (rapd) technique. eight random 10-mer oligonucleotide primers (opa-02, 5-tgccgagctg-3; opa-09, 5-gggtaacgcc-3; opa-10, 5-gtgatcgcag-3; opa-11, 5-caatcgccgt-3; opa-13, 5-cagcacccac-3; opa-17, 5-gaccgcttgt-3; opa-19, 5-caaacgtcgg-3; opa-20, 5-gttgcgatcc-3) with a g + c content of 60-70% (kit a, operon technologies inc., california, usa) ... | 1997 | 9446913 |
| a clonorchis sinensis-specific antigen that detects active human clonorchiasis. | a clonorchis sinensis-specific antigen in excretory-secretory product of c. sinensis (cse) was assessed in human clonorchiasis by immunoblot. thirty and 7 kda antigens of cse2, one of four different batches of cses reacted strongly with infection sera from clonorchiasis patients; however, the antigens reacted weakly with 6-month post-treatment sera from praziquantel-cured cases, but were still highly detected by the sera from praziquantel-failed patients, indicating that the 30 and 7 kda antigen ... | 1998 | 9529862 |
| two endemic foci of heterophyids and other intestinal fluke infections in southern and western coastal areas in korea. | two endemic foci of heterophyid infections were discovered in coastal villages of puan-gun, chollabuk-do, and sachon-gun. kyongsangnam-do, korea. fecal examinations were performed on 153 inhabitants of puan-gun and 138 of sachon-gun, using cellophane thick smear and formalin-ether sedimentation technique. the helminth egg and/or protozoan cyst positive rate was 21.5% (33/153) in puan-gun and 39.1% (54/138) in sachon-gun. in puan-gun, the egg positive rate of heterophyids was the highest, 17.6%, ... | 1998 | 9755586 |
| high endemicity of metagonimus yokogawai infection among residents of samchok-shi, kangwon-do. | a small-scale epidemiological survey was undertaken during 1997-1998 on the residents along the osib-chon (stream), samchok-shi (city), kangwon-do (province), to evaluate the status of metagonimus yokogawai infection. a total of 165 fecal samples was collected and examined by cellophane thick smear and formalin-ether sedimentation techniques. the egg positive rate of m. yokogawai was 29.7%, showing a remarkable difference between males (46.6%) and females (16.3%). to obtain the adult flukes of m ... | 2000 | 10743357 |
| partial characterization of a 17 kda protein of clonorchis sinensis. | a 17 kda protein from clonorchis sinensis adults was purified by a procedure including sephacryl s-200 hr gel filtration and q-sepharose anion exchange chromatography. the protein was proved to be a cysteine protease as it showed hydrolytic activity toward cbz-phe-arg-amc in the presence of dithiothreitol and was inhibited by specific inhibitors such as iodoacetic acid or trans epoxy-succinly-l-leucyl-amido(4-guanidino) butane. the polyclonal antibody raised against the protein reacted to 17 kda ... | 2000 | 10905071 |
| [pleural effusion and eosinophilia associated with metagonimus yokogawai infection]. | we encountered a patient with a mild fever and chest discomfort in whom right pleural effusion and eosinophilia (48%) had developed. parasite eggs were found in the feces, and metagonimiasis was diagnosed. the pleural fluid contained many charcot-leyden crystals, suggesting active eosinophilic inflammation. metagonimus yokogawai usually occurs as a gastrointestinal parasite and causes only mild gastrointestinal symptoms such as diarrhea. most cases of metagonimiasis resolve spontaneously. howeve ... | 2001 | 11431915 |
| [a 11-year-old girl with metagonimus yokogawai infection and prolonged abdominal pain]. | | 2002 | 11847515 |
| food-borne intestinal trematode infections in the republic of korea. | a total of 19 species of food-borne intestinal trematodes have been reported in humans in the republic of korea. they include 12 species of the heterophyidae, metagonimus yokogawai, m. takahashii, m. miyatai, heterophyes nocens, h. heterophyes (imported), h. dispar (imported), heterophyopsis continua, pygidiopsis summa, stellantchasmus falcatus, centrocestus armatus, stictodora fuscata, and s. lari; four species of the echinostomatidae, echinostoma hortense, e. cinetorchis, echinochasmus japonic ... | 2002 | 12113752 |
| changing patterns of infection with digenetic larval trematodes from fresh-water fish in river taewha, kyongnam province. | recent patterns of infection with digenetic larval trematodes in fresh-water and brackish-water fish were studied in three locations of the river taewha during the period from april to october 1988, and compared with the data reported previously in the same river. of 16 species of fish examined, the encysted larvae of cyathocotyle orientalis were found most frequently from 9 species of fresh-water fish. the metacercariae of echinochasmus sp., metacercaria hasegawai and metagonimus yokogawai were ... | 1988 | 12811040 |
| [epidemiological survey on metagonimus yokogawai infection in the eastern coast area of kangwon-province, korea] | an epidemiological survey on metagonimus yokogawai infection was performed in the eastern coast area of kangwon province. formalin-ether concentration technique and stoll's dilution egg counting method were employed to figure out the prevalence and intensity of m. yokogawai infection and eating habits of inhabitants with raw freshwater fish. the results are summarized as follows: the prevalence rate of m. yokogawai infection was 6.6% among a total of 2,357 examinees; 8.6% (115 out of 1,345) in m ... | 1987 | 12886083 |
| [intestinal parasite survey in seoul by stool examination at hanyang university hospital] | the present study was undertaken to evaluate the present status of intestinal parasitic infection in seoul area, korea. during the period from june 1985 to july 1986, a total of 5,251 stool samples were collected in department of clinical pathology, hanyang university hospital and examined by formalin-ether sedimentation technique once for helminth ova and protozoan cysts. the results were summerized as follows: the overall egg positive rate of intestinal helminthes was 2.53 per cent; and 1.43 p ... | 1986 | 12886099 |
| [a survey on intestinal parasites of soldiers in korea] | total of 2,643 korean soldiers were examined of their stool for parasitic infections by both cellophane thick smear and formalin-ether concentration techniques from august 1983 to december 1985. out of them, 73.6% were free from any parasite, 22.6% were ova positive and 4.0% cyst positive. the ova positive rates by species were ascaris lumbricoides 2.0%, trichuris trichiura 13.0%, hookworm and trichostrongylus orientalis 0.08% respectively, clonorchis sinensis 7.6%, metagonimus yokogawai 1.1%, p ... | 1986 | 12886100 |
| in situ posture of anterior body of metagonimus yokogawai in experimentally infected dog. | the in situ posture of anterior body of metagonimus yokogawai was observed in experimental metagonimiasis of dog. the metacercariae were collected from naturally infected sweetfish by peptic digestion; a total of 8 dogs was orally infected with 10,000 metacercariae respectively. two dogs were killed on 3 days, 9 days, 4 weeks and 10 weeks after the infection. the postures of worms in histological section of small intestine and of whole worms collected from the fixed intestinal mucosa were examin ... | 1985 | 12888662 |
| [studies on the intestinal fluke, metagonimus yokogawai katsurada, 1912 in korea geographical distribution of sweetfish and infection status with metagonimus metacercaria in south-eastern area of korea] | the present survey was undertaken to observe the geographical distribution of metacercaria among the sweetfish, plecoglossus altivelis, the most important second intermediate host of metagonimus yokogawai, which were collected during the period from 1983 to 1984 in south-eastern coastal areas of korea. the results obtained were summarized as follows: 1. a total of 668 sweetfish collected from 70 chons (=streams) in the above coasta1 areas was examined for the metacercariae, and 432(64.7 percent) ... | 1985 | 12888694 |
| a preliminary observation on watery content of small intestine in metagonimus yokogawai infected dog. | the intestinal contents of a dog infected with 49,732 m. yokogawai for 8 weeks were normal but in a 4-week-old infection the intestinal water content correlated roughly with the number of worms. most worms were found 40 to 102 cm along the small intestine but the entire length was parasitized. the concentrations of na+, k+ and cl- decreased and the concentration of hco3- and ph increased along the small intestine while the osmolarity remained roughly constant (324 to 340 mosm/kg). | 1985 | 12888700 |
| study on metagonimus yokogawai(katsurada, 1912) in korea vii. susceptibility of various strains of mice to metagonimus infection and effect of prednisolone. | an experimental study was undertaken to observe the difference in susceptibility of mouse strains to metagonimus yokogawai infection by estimating it from worm recovery rate and dimension of worms. it was also studied the effects of prednisolone injection on the chronological pattern of worm recovery in icr mice. the metacercariae were obtained from sweetfish and 300 in each number were given to 5 strains (cbh, a, dba, c(57)bl and kk) of mice, and after 7 days period, the worms were collected fr ... | 1984 | 12891008 |
| [epidemiological studies on metagonimus yokogawai infection in samcheok-gun, kangwon-do, korea] | an epidemiological study on metagonimus yokogawai infection was performed in samcheok-gun, kangwon province during the period from november 1983 to october 1984. formalin-ether concentration technique and stoll's dilution egg counting method were employed to figure out the prevalence and infection intensity of m. yokogawai infection. the results are summarized as follows: the prevalence of m. yokogawai infection was 13.3 % among 1,172 examined; 18.0 % (114 out of 632) in male and 7.8 % (42 out o ... | 1984 | 12891009 |
| comparative morphology of eggs of heterophyids and clonorchis sinensis causing human infections in korea. | in order to provide some clues for differential diagnosis of trematode infections in fecal examination, the comparative morphology of eggs of 5 kinds of heterophyid flukes (metagonimus yokogawai, heterophyes heterophyes nocens, heterophyopsis continua, stellantchasmus falcatus and pygidiopsis summa) and clonorchis sinensis was studied. the eggs were obtained from distal portion of uteri of worms which were recovered from men after treatment. the characteristic shape and apperance of each kind of ... | 1984 | 12891010 |
| [survey on encysted cercaria of trematodes from fresh-water fishes in tongjin riverside areas in korea] | in an attempt to clarify the epidemiological feature of distomiasis in tongjin riverside area, the prevalence of distomiasis in the residents and infection rates of the metacercariae in fresh-water fishes were investigated at the upper, middle and lower reaches of the river from january to april 1984. the results obtained were summarized as follows: out of a total of 931 fresh-water fishes which composed of 33 different species, 611 fishes (65.6 %) of 31 species were found positive with digeneti ... | 1984 | 12891012 |
| [study on metagonimus yokogawai(katsurada, 1912) in korea vii. electron microscopic observation on the tegumental structure] | this study was performed to observe the chronological changes in the tegumental structure of m. yokogawai using scanning electron microscope. the subjected worms were excysted metacercariae obtained from sweetfish, and 2-day, 1-week and 4-week old worms experimentally reared in albino rats. the results are as follows: the tegument of excysted metacercariae showed many transverse shallow rugae, which were more remarkable in posterior half body, i.e., posterior to ventral sucker. the whole surface ... | 1984 | 12891025 |
| [study on sensory papillae of metagonimus yokogawai cercaria] | a number of studies on the papillae of cercariae of trematodes reported that the papillar patterns (or chaetotaxy) of cercariae might be an excellent method to attain better understanding of the digenetic trematodes (richard, 1971; short and cartrett, 1973; bayssade-dufour, 1979). the present study was aimed to determine the number, distribution pattern and structure of the sensory papillae of metagonimus yokogawai cercariae, and to elucidate the chaetotaxy of this digenetic trematode. m. yokoga ... | 1984 | 12891026 |
| [infestation of larval trematodes from fresh-water fish and brackish-water fish in river hyungsan, kyungpook province, korea] | in order to determine the infestation patterns for metacercaria of digenetic trematodes, several kinds of fresh-water and brackish-water fish were caught in river hyungsan, kyungpook province, korea and examined from march to october in 1983. they were collected by netting, fishig with rod and line, or using the bait of crushed oil cake in transparent plastic bowls, and were dissected into the flesh, scales and fins with tail, and then examined for the presence and infestation density of larval ... | 1984 | 12891035 |
| recent patterns of intestinal helminth infections among the residents in taegu city, korea. | in order to estimate the recent pattens of intestinal helminth infections among the residents in taege city, korea, a survey based on discovery of helminth eggs by formalin-ether sedimentation and modified graham's scotch-tape anal swab techniques, were performed during the period from march to september in 1983. a total of 1,697 fecal specimens were collected from 854 male and 843 female residents from 5 villages(dong), each of whom were selected randomly to represent 1,000 persons referred to ... | 1984 | 12891040 |
| [epidemiological studies on clonorchis sinensis infection along the nam-river in gyeongnam province, korea] | an epidemiological study on clonorchis sinensis infection along the nam-river (total length; 186km) flowing in gyeongsang-nam-do, southern part of korea, was carried out. formalin-ether concentration technique and stoll's egg counting method were employed to figure out the prevalence of c. sinensis infection. for the detection of cercariae from parafossarulus sp., the snail host of c. sinensis, each snail was placed in aerated tap water, and examined for expelled cercariae. for observing the met ... | 1983 | 12902647 |
| [survey on encysted cercariae of trematodes from fresh-water fishes in mangyeong riverside area] | in order to clarify infestation pattern for the encysted larvae of digenetic trematodes from fresh-water fishes, this survey was carried out from march to september, 1983. a total of 380 fishes of 32 species were collected with netting at the three reaches, upper, middle and lower in mangyeong riverside area. after the fishes were dissected into small scraps, they were pressed under cover glass and examined for the presence of those of digenetic trematodes with a microscope. the results obtained ... | 1983 | 12902648 |
| [distribution of medically important freshwater snails and larval trematodes from parafossarulus manchouricus and semisulcospira libertina around the jinyang lake in kyongsang-nam-do, korea] | the jinyang lake is dammed up nam river, and surrounded by jinju city and four counties; jinyang, sanchong, hadong, and sachon in kyongsang-nam-do, korea. the area around this man-made lake have been known as an endemic focus of clonorchiasis in korea. the present study was first aimed to know the distribution of freshwater mollusks including medically important snails, and larval trematodes shed from parafossarulus manchouricus and semisulcospira libertina. in addtion to above studies, water an ... | 1983 | 12902649 |
| [infestation of larval trematodes from fresh-water fish and brackish-water fish in river taechong, kyungpook province, korea] | a study of infestation patterns for larval trematodes from fresh-water fish and brackish-water fish was carried out during the period from june to october in 1982. they were collected by netting, fishing with rod and line, and using the bait of crushed oil cake in a transparent plastic bowls at the three localities, daebon-dong, kugil-dong, and hoam-dong in the river taechong, kyungpook province, korea. five species of fresh-water fish, the crussian carp, carassius carassius linnaeus, the bullhe ... | 1983 | 12902663 |
| a study on intestinal lesions of experimentally reinfected dogs with metagonimus yokogawai. | the intestinal lesions were studied in dog metagonimiasis by reinfection. the metacercariae of m. yokogawai were collected from naturally infected sweetfish. a total of twenty dogs were divided into three groups; control, primary infection and reinfection groups. the 18 dogs were infected with 10,000 metacercariae; the 5 dogs in primary infection group were killed at the 5 days in 1 week, 4 weeks, 6 weeks after the infection. the remaining 13 dogs were kept for nine weeks, and challenged again w ... | 1983 | 12902670 |
| [study on metagonimus yokogawai (katsurada, 1912) in korea: vi.the geographical distribution of metacercarial infection in sweetfish along the east and south coast] | this study was carried out to outline the geographical distribution of the sweetfish which were infected by the metacercariae of metagonimus yokogawai from august to october in 1979. the infection status was examined both by the muscle compression method and by digestion technique. the result was summarized as follows: 1. a total of 197 sweetfish, plecoglossus altivelis was collected, 125 fish from 5 streams along the east coast and 72 fish from 4 streams along the south coast. 2. total 125(63.5 ... | 1982 | 12902696 |
| study on the pathology of metagonimiasis in experimentally infected cat intestine. | to study the basic pathological changes of small intestine in metagonimiasis, light- and electron microscopic studies were made, using a total of 21 cats which were experimentally infected with metacercariae of metagonimus yokogawai. the metacercariae were obtained from naturally infected sweetfish (plecoglossus altivelis) by digestion technique. the cats were divided in control, light-infection(10,000 metacercariae infected) and heavy-infection(50,000 metacercariae infected) groups. cats were k ... | 1981 | 12902706 |
| studies on parasitic helminths of korea 5.survey on intestinal trematodes of house rats. | a study was carried out to evaluate the house rats in southern korea as reservoir host of intestinal trematodes, in 13 different areas: 7 in inland and 6 in brackish-water zones, during the period from august 1980 to august 1981. a total of 170 house rats was captured; 101 rats from inland and 69 from brackish-water zones. they consisted of 129 rattus norvegicus, 22 r. rattus rufescens, and 19 unidentified. the infection status of the rats were as follows: 1. total 29 rats (17.1%) were infected ... | 1981 | 12902707 |
| infestation with larval trematodes from fresh-water fish in natural and fish breeding ponds. | the present study was undertaken to determine the pattern of infestation with the encysted larvae of digenetic trematodes in freshwater fish collected in both the natural and fish breeding ponds in kyungpook province, korea. the fish collected in the two natural ponds, nass-chil, and sa-il, and three fish breeding ponds, deok-dong, mo-gok, and seongryu-tunnel, were examined from july 1980 to august 1981. the data were compared with the results obtained from freshwater fish caught in the river ku ... | 1981 | 12902710 |
| [an epidemiological study on zoonoses in korea] | helminthic zoonoses are of significant importance to the public health and to the socioeconomic consequences especially in lost-meat, animal products and animal labor. for past several decades in korea, it has been recognized that endoparasitic infections among domestic animals are extremely common and many of the helminth parasites of man have been acquired from, or are shared with domestic animals. however, there was no survey of a nationwide scale on the prevalence of animal helminthiasis; an ... | 1981 | 12902720 |
| epidemiological studies of clonorchis sinensis in vicinity of river taewha, kyungnam province, korea. | in order to determine the epidemiological patten of the liver fluke, clonorchis sinensis, the locality where the snail, parafossarulus manchouricus, is abundant, the infestation rates for the cercarial and metacercarial larvae of digenetic trematodes in the snail and fish hosts, and the prevalence of clonorchis sinensis among the residents in the vicinity of river taewha, kyungnam province, korea were studied from march 1979 to september 1980. four snail habitats were found in the river taewha. ... | 1980 | 12902731 |
| [study on the metagonimus sp. in gum river basin, chungchung-nam do, korea] | this study was undertaken to elucidate the status of metagonimus species infection and to demonstrate the first and the second intermediate hosts of the fluke at the several localities along the gum river, chungchung-nam do, korea from march 1979 to october 1980. the results are summarized as follows: 1. total 790 stool specimens of inhabitants from 6 localities along gum river were examined by the combination of cellophane thick smear technique and formalin-ether concentration technique. the po ... | 1980 | 12902732 |
| demonstration of metagonimus yokogawai metacercariae from plecoglossus altivelis in river ahnseong, kyungpook province, korea. | there are a number of eating-houses in the basin of river ahnseong that sell rawsweetfish, plecoglossus altivelis, to local residents and visitors. these facts called attention to the possibility of wide spread of metagonimiasis in that area. in an attempt to determine whether the metacercaria of metagonimus yokogawai does present in the sweetfish caught in the river ahnseong, a total of 77 fish were examined in the period from april to september 1978. all the fish were infected with the encyste ... | 1979 | 12902759 |
| [epidemiological conditions of metagonimus yokogawai infection in hadong gun, gyeongsang nam do] | an epidemiological investigation was conducted on metagonimus yokogawai infection in hadong gun (county), gyeongsang nam do, korea, and following findings were obtained. 1. overall prevalence rate of metagonimus yokogawai infection was 29.1% from a total of 1,163 inhabitants examined. by area of river and stream, seomjin-gang r.: 9.5% (out of 95 inhabitants examined) in jeondo ri in the lower river, 19.9% (156) at dugog ri near hadong town, and 90.8% (65) in tab ri of hwagae myeon where hwagae-c ... | 1979 | 12902760 |
| [anthelmintic effects of various drugs against metagonimiasis] | the infection of metagonimus yokogawai has been known to be present nationwidely and endemic in some parts in korea. in order to select a highly effective compound against metagonimus infections, the therapeutic effects were observed in 156 cases who were treated with several anthelmintic i.e. bithionol, niclosamide, niclofolan and praziquantel. all of the above drugs showed highly effective to the treatment of metagonimiasis by a single or two medication days. the egg reduction rates were in th ... | 1978 | 12902772 |
| [epidemiological study on metagonimus yokogawai infection along boseong river in jeonra nam do, korea] | prevalence study of metagonimus yokogawai infection, survey of intermediate hosts of metagonimus yokogawai and food habits of raw sweetfish among inhabitants along boseong river (120 km), jeonra nam do (province) were carried out. the results are summarized as follows: 1. among 360 examined, the egg positive case were 128(35.6%); male 112(46.7%), female 16(13.3%). 2. the prevalence rates were different by geographical areas; 42.4% in down stream, 49.4% in middle stream and 13.3% in upper stream. ... | 1978 | 12902778 |
| study on metagonimus yokogawai(katsurada, 1912) in korea: iv. an epidemiological investigation along tamjin river basin, south cholla do, korea. | a status survey on metagonimus yokogawai infection along the tamjin river basin, south cholla do, korea was conducted from september to november 1977. the snail intermediate host, semisulcospira sp., the fish host, plecoglossus altivelis and the inhabitants in three villages in jangheung and kangjin guns were examined for detection of this trematode infection respectively. the results could be summarized as follows: 1. out of 452 snails, semisulcospira sp., 105 (23.2%) were found positive for re ... | 1977 | 12913425 |
| metacercarial density of metagonimus yokogawai in plecoglossus altivelis in kyungpook province, korea. | in order to determine the intensity of infection with the encysted larvae of metagonimus yokogawai among plecoglossus altivelis, sweetfish, caught at the rivers in kyungpook province, korea were examined in the period from july to october, 1976. the data were compared with the results obtained from tribolodon hakonensis, the sea-run dace, caught at the river hyungsan in the province. a total of 128 plecoglossus altivelis were examined. all the fish were infected with the metacercaria of metagoni ... | 1977 | 12913432 |
| the prevalence of intestinal helminthes in inhabitants of cheju do. | the authors examined 3,169 fecal specimens from inhabitants of seven localities such as city, eups and myons in cheju do on july 1970 with cellophane thick smear technique. the results were analysed and summarized as follows: 1) the overall egg positive rate of helminths was 82.2% and it was attributed to high rates of soil-transmitted helminths as in case of other parts in korea. 2) the infection rates of each species were; a. lumbricoides 44.3%, t. trichiurus 65.6%, hookworm 1.5%, t. orientali ... | 1972 | 12913504 |
| study on metagonimus yokogawai (katsurada, 1912) in korea: ii. the in vitro excystation of metacercariae. | a series of experiments on various factors which induce optimal in vitro excystation of the metacercariae of metagonimus yokogawai isolated from the fish, plecoglossus altivelis was conducted and the following results were obtained. 1)the metacercariae used in this experiment were isolated by the digestion technique therefore all of them were pretreated with the acid-pepsin solution before being applied to the various tests. 2)no excystation occurred when the metacercariae were placed in a salt ... | 1970 | 12913512 |
| parasitologial studies of korean forces in south vietnam: ii. a comparative study on the incidences of intestinal parasites. | a survey of intestinal parasites was performed in south vietnam. samples were collected from 717 vietnameses, 1,933 u.s. forces, 433 stool specimens of korean troops in south vietnam. and 114 of korean army patients in home land were also examined as a control. findings were discussed with others and summarized as follows: 1)a parasitic rate, incidence in general, was 44.8 %. 2)koreans in south vietnam showed 82.4 % of infection rate, vietnamese 64.6% and u.s. forces 26.1 %. korean home patients ... | 1970 | 12913523 |
| study on metagonimus yokogawai(katsurada, 1912) in korea: i. on the metacercaria, its distribution in the second intermediate host and the development in the final host. | 1)the metacercariae of metagonimus yokogawai were isolated from the sweetfish plecoglossus altivelis, clollected at hwagae, south kyongsang do, one of the newly known endemic foci of metagonimiasis in korea. the body structure of metacercaria of m.yokogawai was described and the measurements of the excysted metacercaria were also made. 2)in order to know the distribution of metacercariae within the host, the rate of infection and the intensity of infection, a total of 10 sweet fishes was examine ... | 1969 | 12913526 |
| an evaluation of cellophane thick smear technique for mass stool examination. | to evaluate the kato's cellophane thick smear techcique in detection ability of various helminth ova, authors examined 1,843 nationwidely collected stool specimens by the two methods, formalin-ether technique and cellophane thick smear technique. and the results were analyzed. 1. the positive rates of following helminth ova were superior in cellophane thick smear technique to those of formalin-ether technique: ascaris lumbricoides(62.3% : 51.1%), taenia species (1.5% : 0.9%). the difference in a ... | 1969 | 12913541 |
| [study on the status of helminthic infections in koreans] | this study was undertaken to evaluate the present status of intestinal helminthic infections in koreans, from april 1967 through may 1969. the nationwidely collected stool specimens and scotch-tape anal swabs from primary schoolchildren, middle school students, draftees to army recruitment camp, soldiers and inhabitants of various parts of korea were examined. the methods employed were kato's cellophane thick smear technique and formalin-ether sedimentation technique in 40,581 for the prevalence ... | 1969 | 12913542 |
| [studies on sarles' phenomenon of the excysted larvae of clonorchis sinensis] | the occurrence of sarles' phenomenon (cerkarien hullen reaktion) are proved in the excysted metacercariae of clonorchis sinensis which were incubated in the sera from rabbits given a varying number of metacercariae of c. sinensis per orally. the precipitates were formed around the oral sucker and excretory bladder of the excysted larvae. sarles' phenomenon began to be positive from the 2nd to 3rd week after infection. in the excysted larvae of c. sinensis precipitates were not produced in the se ... | 1968 | 12913549 |
| [studies of the larval trematodes from brackish water fishes: 2. observation on metagonimus yokogawai katsurada, 1912] | the parasitological investigation on the encysted metacercariae in brackish water fish, tribolodon taczanowskii steindachner, in the downstream of hyungsan river which is located in kyungpook province of korea, were carried out, and the following results were obtained. 1)metacercariae of metagonimus species were found in seventy five fishes (40.5 percent) out of 185 examined. 2)parasitic frequencies of the encysted matacercaria of metagonimus species in tribolodon taczanowskii were 23.2 percent ... | 1966 | 12913575 |
| [comparison of detection rate of some trematodes' eggs by combined technique of formalin-ether sedimentation and zinc sulfate flotation] | combined technic of formalin-ether sedimentation and zinc sulfate flotation was carried out to compare the detection rate of paragonimus eggs in feces between formalin-ether sedimentation technic and zinc sulfate centrifugal flotation, using the feces of cat infected with paragonimus westermani for former and intestinal contents of rabbit infected with metagonimus yokogawai for latter. and following results were obtained. 1) zinc sulfate method was highly excellent in detection of paragonimus eg ... | 1964 | 12913609 |
| [prevalence of intestinal parasites in korea] | a survey of intestinal parasites infection among korean people has been carried out during july 1969 to december 1970. a total of 2,250 stool specimens (male 1,101, female 1,146) was collected from all the provinces and seoul city in korea. the specimens were examined routinely by direct fecal smear, zinc sulfate flotation and formalin-ether sedimentation techniques. the results are summarized as follows: 1. of 2,250 specimens examined, l,803(80.l %) were positive for intestinal parasites. 2. th ... | 1971 | 12913622 |
| sequence comparisons of 28s ribosomal dna and mitochondrial cytochrome c oxidase subunit i of metagonimus yokogawai, m. takahashii and m. miyatai. | we compared the dna sequences of the genus metagonimus: m. yokogawai, m. takahashii, and m. miyatai. we obtained 28s d1 ribosomal dna (rdna) and mitochondrial cytochrome c oxidase subunit i (mtcoi) fragments from the adult worms by pcr, that were cloned and sequenced. phylogenetic relationships inferred from the nucleotide sequences of the 28s d1 rdna and mtcoi gene. m. takahashii and m. yokogawai are placed in the same clade supported by dna sequence and phylogenic tree analysis in 28s d1 rdna ... | 2004 | 15381861 |
| susceptibility of inbred mouse strains to infection with three species of metagonimus prevalent in the republic of korea. | susceptibility of inbred mouse strains to metagonimus yokogawai, metagonimus miyatai, and metagonimus takahashii infections was studied using balb/c, ddy, c57bl/6j, c3h/hen, and a/j mice, with h-2 haplotypes d, s, b, k, and a, respectively. two hundred metacercariae were orally fed to each mouse, and the worm recovery rates (wrr), worm dimensions, and intrauterine egg numbers were measured at days 3, 7, 14, 21, and 28 postinfection (pi). on day 14 pi, the wrr of m. yokogawai was highest in ddy m ... | 2005 | 15856865 |
| rare case of metagonimus yokogawai. | intestinal heterophyid infections are almost unknown in india with only one documented case report. we report a case of six year old child with diarrhoea without any other associated gastrointestinal symptoms. examination of the faeces revealed eggs of metagonimus yokogawai. however, the patient left against medical advice and was lost to follow up. the case is being reported because of its rarity. | 2005 | 15928427 |
| prevalence of helminthes in adult dogs in heilongjiang province, the people's republic of china. | the prevalence of helminthes in adult dogs was investigated in heilongjiang province, the people's republic of china, between 1996 and 2004. a total of 178 adult farm dogs from representative geographical locations in heilongjiang province were killed and examined for the presence of helminthes using a helminthological approach. the worms were examined, counted, and identified to species according to existing keys and descriptions. a total of 17 species of helminthes were found to infect dogs, a ... | 2006 | 16715234 |
| geographical distribution of metagonimus yokogawai and m. miyatai in shizuoka prefecture, japan, and their site preferences in the sweetfish, plecoglossus altivelis, and hamsters. | sweetfish, plecoglossus altivelis, obtained from 18 rivers in shizuoka prefecture were examined for metacercarial infection of 2 flukes, metagonimus yokogawai and metagonimus miyatai. the infection rate and density of metacercariae in the fish were higher in eastern and western regions than in central region of the prefecture. after infection of hamsters with metacercariae derived from the scale, 98.7% of the adult worms obtained from the intestine was found to be m. miyatai. conversely, from in ... | 2006 | 16807078 |
| [role of gastropods in epidemiology of human parasitic diseases]. | pulmonate and prosobranch snails, being necessary hosts for parthenogenetic generations of digenetic trematodes, participate in transmission of all trematodoses important from medical point of view. role of particular gastropods in epidemiology of these diseases is discussed in details. invasion of land snails and slugs is mainly passive by eggs containing developed miracidia, while enter of these larvae into snails inhabiting fresh-water environments is usually active. generations in the snail ... | 2001 | 16888946 |
| case of metagonimiasis complicated with multiple intracerebral hemorrhages and diabetes mellitus. | metagonimiasis yokogawai is an unusual intestinal parasitic disease caused by metacercariae of metagonimus yokogawai. the first clinical manifestations of this disease do not always correlate with gastrointestinal signs. a 61-year-old man with left hemiparesis and disorientation was admitted to our hospital because of atypical nonhypertensive multiple intracerebral hemorrhages, which were conservatively treated. the patient was discharged from our hospital after 2 months without any neurological ... | 2008 | 18360077 |
| gymnophalloides seoi eggs from the stool of a 17th century female mummy found in hadong, republic of korea. | it was previously reported that paleoparasitological clues for parasites infecting humans could be found in the feces of mummies of the joseon dynasty (1392-1910) in the republic of korea. here, we report the presence of trematode eggs, including clonorchis sinensis, metagonimus yokogawai, and gymnophalloides seoi (a human parasite known in korea since 1993) in the feces of a recently excavated female mummy in hadong, republic of korea. this is the first report of the discovery of a g. seoi infe ... | 2008 | 18564747 |
| scanning electron microscope study of ancient parasite eggs recovered from korean mummies of the joseon dynasty. | we have previously shown that parasite eggs have been identified in the coprolites of korean mummies. these eggs have shed light on parasitic infection patterns in korean populations living several hundred years ago. we conducted a scanning electron microscopy (sem) study on ancient trichuris trichiura, ascaris lumbricoides, metagonimus yokogawai, paragonimus westermani, and gymnophalloides seoi eggs recovered from korean mummies of the joseon dynasty. we anticipated that the taphonomic conditio ... | 2009 | 18601576 |
| decrease of metagonimus yokogawai endemicity along the tamjin river basin. | the tamjin river which flows from jangheung-gun via gangjin-gun to the south sea was reported to be a highly endemic area of metagonimus yokogawai infection in 1977 and 1985. however, there were no recent studies demonstrating how much change occurred in the endemicity, in terms of prevalence and worm burden, of metagonimiasis in this river basin. thus, a small-scale epidemiological survey was carried out on some residents along the tamjin river basin in order to determine the current status of ... | 2008 | 19127339 |
| a nationwide survey on the prevalence of intestinal parasitic infections in the republic of korea, 2004. | national surveys on the prevalence of intestinal parasitic infections have been carried out every 5-7 years since 1971 in the republic of korea in order to establish control measures. the present nationwide survey was conducted from june to december 2004. the 10% population sampling data of population and housing census by the korean government in 2000 was used as the survey population. one sample was selected randomly from each of the 22,858 registered subjects, and a total of 20,541 people wer ... | 2009 | 19290090 |
| [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 |