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common antigens of fasciola gigantica, dicrocoelium hospes and schistosoma bovis and their relevance to serology.the possession of common antigens by three trematode parasites which commonly occur together in ruminants in the tropics, fasciola gigantica, dicrocoelium hospes and schistosoma bovis was studied in relation to the reliability of serodiagnosis of infection with these helminths. the crude antigenic extracts of the three trematodes were subjected to sephacryl s-300 column chromatography and f. gigantica was fractionated into six peaks, s. bovis into nine peaks and d. hospes into seven peaks. commo ...19911909064
characterization of the 28s and the second internal transcribed spacer of ribosomal dna of dicrocoelium dendriticum and dicrocoelium hospes.isolates of dicrocoelium dendriticum (n=150) from sheep and cattle bred in southern italy and isolates (n=5) of d. hospes from a bos indicus from senegal were characterized genetically. the 28s region and the second internal transcribed spacer (its-2) plus flanking 5.8s and 28s sequences (its-2+) of ribosomal dna (rdna) were amplified by polymerase chain reaction and sequenced from individual flukes. regarding the 28s rdna, sequences of 568 and 581 bp were obtained for d. dendriticum and d. hosp ...200717605007
dicrocoelium dendriticum or dicrocoelium hospes. 200717479955
cerebral larvae in the second intermediate host of dicrocoelium dendriticum (rudolphi, 1819) and dicrocoelium hospes looss, 1907 (trematodes, dicrocoeliidae).cerebral larvae of dicorcoelium dendriticum and d. hospes and the brains of infected ants were studied. morphologic differences of the freed larvae could not be found, but there were evident differences in number and localization of the cerebral stages. ants infected with d. dendriticum usually showed one "hirnwurm" while in the majority of the ants infected with d. hospes two larvae were found. the typical localization of the "hirnwurm" of d. dendriticum was in the ventral part of the subesopha ...19807434876
occurrence of dicrocoelium hospes in mali and senegal, west africa. 19807373023
camponotus compressiscapus andré (hymenoptera, formicidae) an experimental second intermediate host of dicrocoelium hospes looss, 1907 (trematodes, dicrocoeliidae).infection experiments showed that the african ant camponotus compressiscapus can serve as a second intermediate host of dicrocoelium hospes. most of the cercariae penetrated the crop-wall and encysted in the hemocoel, whereas one or more larvae invaded the ant's central nervous system. these larvae cause behavioral changes, which increase their chance of being ingested by final hosts. experimental infections of definitive hosts were obtained in golden hamsters, meriones unguiculatus, guinea-pigs ...19807434875
dicrocoelium hospes looss, 1907 (digenea, dicrocoeliidae): spermiogenesis, mature spermatozoon and ultrastructural comparative study.this work describes the first ultrastructural results on spermiogenesis and on the mature spermatozoon of dicrocoelium hospes (trematoda, digenea) collected in bos indicus from senegal (africa). examination of this species was processed by tem. spermiogenesis follows the general pattern found in the digenean, but reveals a particularity consisting of the appearance of glycogen granules in the late spermatids within the testes. the mature spermatozoon possesses five distinct regions and presents ...200515772868
morphological and molecular differentiation between dicrocoelium dendriticum (rudolphi, 1819) and dicrocoelium chinensis (sudarikov and ryjikov, 1951) tang and tang, 1978 (platyhelminthes: digenea).dicrocoelium dendriticum (rudolphi, 1819) and dicrocoelium hospes (looss, 1907) are recognised to affect the liver of domestic and wild ruminants. a third species, dicrocoelium orientalis which was described from musk deer in the baikal region of the former soviet union and re-named to dicrocoelium chinensis (sudarikov and ryjikov, 1951) tang and tang, 1978 was isolated from other species of deer in asian countries and from mouflon and roe deer in europe. scant information is available for d. ch ...200717803950
incidence of liver fluke infections (fasciola gigantica and dicrocoelium hospes) in ruminants in northern nigeria.one thousand and twenty-four cattle, 550 sheep and 1,748 goats slaughtered in a rural slaughter slab during 1973 to 1975 were examined for evidence of liverfluke infections. the prevalence rate of fasciola gigantica and dicrocoelium hospes infections was respectively 65.4% and 56.0% in cattle, 40.8 and 13.1% in sheep and 17.6 and 5.2% in goats. other trematodes detected were schistosoma bovis and paramphistomes. the seasonal incidence of f. gigantica as well as of d. hospes was highest during an ...19807414705
spurious infection with dicrocoelium hospes in ghana. 19665948725
a note on dicrocoeliasis and fasciola gigantica infection in livestock in northern ghana, with a record of spurious and of genuine dicrocoelium hospes infections in man. 19666006926
liver fluke infections of cattle in mali. an abattoir survey on prevalence and geographic distribution.six hundred and ninety two cattle, slaughtered in various abattoirs in mali between august 1983 and november 1984 were examined for evidence of fasciola gigantica and dicrocoelium hospes infections. a great variation in geographic prevalence was observed. sufficient knowledge was acquired to demonstrate both the importance of fascioliasis in some areas and also the high prevalence of d. hospes in other areas. we suggest that the difference in prevalence from one geographic area to another is inf ...19883400112
[main features of helminth parasitism in cattle in ituri (haut-zaire). iii. geographic distribution and prevalence of the main helminths].a necropsic survey, carried out in eleven slaughterhouses in ituri (haut-zaïre), has permitted to define the geographic distribution and prevalences of the main cattle helminths. trematodes, except the paramphistomes, had a very heterogeneous distribution. prevalence of fasciola gigantica ranged from 9 to 72% according to the sites, but these variations were not linked to topographic or climatologic parameters. the infection with schistosoma bovis was much variable as well (12.5 to 72%) and seem ...19911775693
increasing incidence of dicrocoelium hospes (looss, 1907) (trematoda: digenea) in uganda. 1977599270
[dicrocoeliasis due to dicrocoelium hospes (looss, 1907) in niger]. 1979523729
the serodiagnosis of chronic fascioliasis (fasciola gigantica) using a fluorescent-antibody technique with single and multiple whole-fluke antigens.sera from cattle with single or mixed infections of fasciola gigantica. dicrocoelium hospes, schistosoma bovis and paramphistomes were examined for fluorescent antibodies. cross-reacting antibodies of the heterologous flukes were easily detected by using cryostat sections with whole-fluke-antigen of all three flukes. the presence of f. gigantica antibodies in a cattle herd was tested at two monthly intervals in order to establish the occurrence of chronic fascioliasis. the lack of significant di ...1979384628
liverfluke survey in zebu cattle of the iringa region of tanzania and the first finding of the small fluke dicrocoelium hospes (looss). 19705525864
[new data on dicrocoelium hospes looss, 1907: anatomy of the adult and life cycle. preliminary paper (author's transl)].the morphological and anatomical studies of dicrocoelium hospes looss, 1907, from togo set off several differences with dicrocoelium lanceolatum rudolphi, 1819: shape and dimensions of the body, shape and disposition of the testes, shape, dimensions and location of the vitellaria, structure of the uterus coils. the first intermediate host is found, they are three species of limicolaria, one of them being l. aurora. the cercaria is described, its chaetotaxy confirms the validity of species d. hos ...19751227378
the pattern of parasitic infection in human gut at the specialist hospital, benin city, nigeria.in a survey of 6213 persons conducted between january 1973 to december 1974, at the specialist hospital, benin city, the most common helminths were necator americanus (16.8%), ascaris lumbricoides (19l5%) and trichuris trichiur (5-9%). dicrocoelium hospes (0-06%) was also recorded and this may become an important liver parasite of man in nigeria. its snail vectors are believed to be species of limicolaria and achatina which are widely dispersed in nigeria. entamoeba coli and e. histolytica showe ...1977849017
liver fluke infections in livestock in borno state, nigeria.a survey was conducted on the prevalence of fasciola gigantica and dicrocoelium hospes eggs in gall bladders of cattle and small ruminants (sheep and goats) slaughtered between november 1987 and december 1988 in maiduguri, borno state, nigeria. prevalence rates of 42.7% and 5.7% were recorded for f. gigantica and d. hospes eggs, respectively, in 246 cattle and 718 sheep and goats examined. out of the 246 cattle examined, 52 (21.1%), 45 (18.3%) and 8 (3.3%) excreted eggs of f. gigantica, d. hospe ...19938122358
two dicrocoeliid trematodes from ghana: concinnum ghanensis n.sp. and dicrocoelium hospes looss, 1907. 19715145260
human infection with dicrocoelium hospes in sierra leone. 19715133904
detection of circulating fasciola gigantica antigen in experimental and natural infections of sheep with fasciolosis.detection of circulating fasciola gigantica antigen was performed in sera of sheep with experimental and natural f. gigantica infections using the direct enzyme-linked immunosorbent assay method. sera from sheep with monoinfections of schistosoma bovis, dicrocoelium hospes and paramphistomum microbothrium were included in the assay to ascertain specificity. circulating f. gigantica antigen (cfa) was detected as early as 1 week after infection in the experimentally infected sheep. no detectable c ...19968916398
a contribution to the biology of dicrocoelium hospes looss, 1907 (trematoda, dicrocoeliidae).in this study, carried out in the ivory coast, dicrocoelium hospes looss, 1907 was shown for the first time to be a parasite of cattle and it was also detected in sheep by the presence of ova in the faeces. up to 50% of the sheep in some flocks were found to shed eggs. the adults, sporocysts, "slime balls" and cercariae of d. hospes are described and compared to the respective stages of d. dendriticum. this comparison shows that essential morphological structures are very similar, especially the ...197828656
cross-sectional study of fasciola gigantica and other trematode infections of cattle in edu local government area, kwara state, north-central nigeria.trematode infections of livestock are of global veterinary and public health importance causing serious economic losses. majority of data on burden of trematode infections in nigeria are based on abattoir surveys and there are very few data on herd level risk factors. the present study investigated the prevalence of, and herd level risk factors for, fasciolosis and other trematode infections in cattle in edu local government area (lga).201627565768
the effect of sex on seasonal variation in single and double infection of cattle in sierra leone by dicrocoelium hospes and fasciola gigantica.the incidence of dicrocoeliasis (61.8%) is higher than that of fascioliasis (25.5%) and their peaks do not occur at the same time of the year. the peak for the former occurs in the dry season while that of the latter occurs in the rainy season. the incidence of dicrocoeliasis and fascioliasis in female cattle was found to be higher than that of male cattle. double infection was higher in female (14.7%) than in male hosts (9.6%).19846541838
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