| [dapaong "tumor". helminthiasis caused by oesophagostomum]. | 28 cases of pseudotumors of the bowel, ileum and appendix by an infestation with oesophagostomum bifurcum, a rare human parasite, are studied. | 1988 | 3214503 |
| reinfection patterns of oesophagostomum bifurcum after anthelmintic treatment. | subjects infected with the adult worms of oesophagostomum bifurcum, diagnosed through semiquantitative detection of characteristic third stage larvae, were treated in the middle of the dry or in the middle of the rainy season with two different dosages of albendazole. a third group was not treated. the pattern of reinfection after treatment was analysed. transmission of oesophagostomum infection appeared to be limited to the rainy season and the rate of reinfection was independent of the dose of ... | 1995 | 8560587 |
| geographic distribution and epidemiology of oesophagostomum bifurcum and hookworm infections in humans in togo. | in contrast to the rest of the world, infections with oesophagostomum bifurcum are commonly found in humans in northern togo and ghana. in addition, infections with hookworm are endemic in this region. in the present study, a detailed map of the geographic distribution of o. bifurcum and hookworm infections in northern togo was made. there were a number of foci with high prevalence of infection with o. bifurcum. all the villages examined were infected with hookworm, and the distribution was quit ... | 1999 | 10674676 |
| quantitative interpretation of coprocultures in a population infected with oesophagostomum bifurcum. | coproculture is used in northern togo and ghana in the research on oesophagostomum bifurcum, a common parasite of man in these regions. prior to a follow-up study to investigate patterns of reinfection in oesophagostomum and hookworm, it was attempted to evaluate the relevance of counting larvae for the assessment of the intensity of infection at the population level. of 102 samples, one egg count (kato-smear) and three coprocultures were carried out. frequency distributions of counts of larvae ... | 1995 | 8560586 |
| observations on the morphology of adults and larval stages of oesophagostomum sp. isolated from man in northern togo and ghana. | infection with oesophagostomum sp. appears to be extremely common in man in northern togo and ghana. adult specimens were recovered from the intestinal lumen by treatment with pyrantel pamoate and the morphological characteristics of oesophagostomes of man could for the first time be compared with information available on the morphology of oesophagostomes of monkeys. the observations and measurements demonstrated that the species involved is oesophagostomum bifurcum and that the eggs of this spe ... | 1993 | 8509618 |
| treatment of mixed oesophagostomum and hookworm infection: effect of albendazole, pyrantel pamoate, levamisole and thiabendazole. | oesophagostomum bifurcum has recently been recognized as a common parasite of man in northern togo and in ghana. in a preliminary trial several anthelmintics were evaluated in the treatment of mixed oesophagostomum and hookworm infections. diagnosis was based on faecal culture, since the eggs of oesophagostomum and hookworm cannot be distinguished morphologically. of the anthelmintics tested, albendazole was most effective against both parasites. pyrantel pamoate, 2 x 10 mg/kg, was effective aga ... | 1993 | 8465409 |
| egg production of oesophagostomum bifurcum, a locally common parasite of humans in togo. | in northern togo and northeastern ghana, oesophagostomum bifurcum is a common parasite in humans. diagnosis is based on coproculture because the eggs of hookworm and oesophagostomum are indistinguishable. to determine the level of egg production, 12 subjects were treated with 2 x 10 mg/kg of pyrantel pamoate and the worms they evacuated were then counted. pretreatment and post-treatment species-specific egg counts were calculated on the basis of larval and total egg counts. the median worm burde ... | 1992 | 1575294 |
| human oesophagostomum infection in northern togo and ghana: epidemiological aspects. | recently, it has been established that human infection with oesophagostomum bifurcum is common in northern togo and northeastern ghana. two surveys were conducted in this area. in a regional survey, o. bifurcum infection appeared to occur in 38 of 43 villages. the highest prevalences (up to 59%) occurred mostly in small isolated villages and were usually associated with high hookworm infection rates. the infection was relatively rare in children under five years of age (7% infected). in older in ... | 1992 | 1449277 |
| insights into the epidemiology and genetic make-up of oesophagostomum bifurcum from human and non-human primates using molecular tools. | the nodule worm oesophagostomum bifurcum (nematoda: strongylida) is a parasite of major human health importance predominantly in northern togo and ghana. currently, it is estimated that 0.25 million people are infected with this nematode, and at least 1 million people are at risk of infection. infection with this parasite causes significant disease as a consequence of encysted larvae in the wall of the large intestine. in spite of the health problems caused by o. bifurcum, there have been signif ... | 2006 | 16332292 |
| determining the prevalence of oesophagostomum bifurcum and necator americanus infections using specific pcr amplification of dna from faecal samples. | until recently infection of humans with oesophagostomum bifurcum was regarded as a rare zoonosis. but in northern togo and ghana its prevalence is 50% or more in certain villages. diagnosis is hampered by the fact that the eggs of o. bifurcum are morphologically identical to those of the hookworm necator americanus. stools have to be cultured for 7 days to allow eggs to hatch to the characteristic third-stage (l3) larvae. we evaluated the applicability of specific polymerase chain reactions (pcr ... | 2001 | 11555440 |
| clinical epidemiology and classification of human oesophagostomiasis. | the intestinal helminth oesophagostomum bifurcum is highly and focally endemic in northern ghana and togo, and its juveniles produce a nodular inflammatory response as they develop in the intestinal wall. this pathology can produce clinical symptoms. we report on 156 cases of oesophagostomiasis presenting in 1996-98 to nalerigu hospital in northern ghana. the disease accounted for 0.2% of the out-patient department new presentations (about 1 patient per week), and 1% (16) of the major acute surg ... | 2000 | 10897362 |
| the capacity of the third-stage larvae of oesophagostomum bifurcum to survive adverse conditions. | human infections with the intestinal nematode oesophagostomum bifurcum are commonly found in the sudan savannah of northern togo and ghana. apparently, the long and hot dry season in this region does not prevent transmission, which is believed to take place through ingestion of the infective, third-stage larvae (l3). oesophagostomum l3 cultured from human stools, unlike the larvae of necator americanus, were shown to survive desiccation. in addition, 93% of the o. bifurcum l3 frozen for 24 h at ... | 2000 | 10827871 |