Simulium damnosum
Modelling the impact of larviciding on the population dynamics and biting rates of Simulium damnosum (s l ): implications for vector control as a complementary strategy for onchocerciasis elimination in Africa
... Background: In 2012, the World Health Organization set goals for the elimination of onchocerciasis transmission by 2020 in selected African countries. Epidemiological data and mathematical modelling have indicated that ...
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Retarded Onchocerca volvulus L1 to L3 larval development in the Simulium damnosum vector after anti wolbachial treatment of the human host
... wild Simulium flies with Onchocerca volvulus Before and after treatment, the volunteers were brought to a pre-selected ...a Simulium breeding site on the bank of the River Mungo to allow Simulium ...
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Onchocerciasis transmission in Ghana: the human blood index of sibling species of the Simulium damnosum complex
... on assumptions made regarding the HBI. Stolk et al. [8] fixed the HBI of the savannah members of the Simulium damnosum (sensu lato) (s.l.) complex at 0.96 in their com- parison of the ONCHOSIM and EPIONCHO ...
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Notes on distribution of Simulium damnosum s l along Atbara River in Galabat sub focus, eastern Sudan
... Background: Onchocerciasis is caused by a nematode worm Onchocerca volvulus, which is transmitted in Sudan by black fly vectors of the Simulium damnosum sensu lato species complex. In Sudan, the disease is ...
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Biting behaviour of Simulium damnosum complex and Onchocerca volvulus infection along the Osun River, Southwest Nigeria
... Though, none of the flies were infected, the value of ABR recorded in each of the three sampling points dur- ing this study was far above the threshold biting rate usually considered for onchocerciasis transmission by ...
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Preliminary study on temporal variations in biting activity of Simulium damnosum s l in Abeokuta North LGA, Ogun State Nigeria
... The Simulium damnosum Theobald complex are the only vectors of Onchocerca volvulus Leuckart, filarial parasite causing the human onchocerciasis in West Africa ...S. damnosum sensu lato ...
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Stability and change in the distribution of cytospecies of the Simulium damnosum complex (Diptera: Simuliidae) in southern Ghana from 1971 to 2011
... blackfly Simulium damnosum Theobald sensu lato .... damnosum was not a single species, but rather a complex of sibling species which were morphologically very similar or identical, although they ...
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Morphological studies of Female Simulium damnosum s.l. in Akamkpa Local Government Area, Cross River State, Nigeria
... S. damnosum species in the study area indicated the unreliability of using wing-tufts as the main tool for separation of Simulium sibling ...from Simulium yahense by having pale wing-tufts without ...
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Onchocerciasis transmission in Ghana: biting and parous rates of host seeking sibling species of the Simulium damnosum complex
... Ghana has a great diversity of sibling species of the Simu- lium damnosum complex [1], vectors of Onchocerca vol- vulus, the causative agent of human onchocerciasis or river blindness [2]. Sibling species and ...
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Discrimination between Onchocerca volvulus and O ochengi filarial larvae in Simulium damnosum (s l ) and their distribution throughout central Ghana using a versatile high resolution speciation assay
... Onchocerca volvulus is a human filarial parasite respon- sible for the disease onchocerciasis, and is transmitted between hosts by blackflies of the genus Simulium. Col- lection of blackflies throughout disease ...
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Situation analysis of parasitological and entomological indices of onchocerciasis transmission in three drainage basins of the rain forest of South West Cameroon after a decade of ivermectin treatment
... of Simulium species with different vec- torial capacities in the rain forest compared to Savannah zones ...C. Simulium damnosum ...– Simulium complexes ...
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Individual exposure to Simulium bites and intensity of Onchocerca volvulus infection
... In the human population of hyperendemic onchocercia- sis villages, a high individual parasite load results from an intense and prolonged exposure to the transmission of infective larvae of Onchocerca volvulus by the ...
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Human landing rate, gonotrophic cycle length, survivorship, and public health importance of Simulium erythrocephalum in Zaragoza, northeastern Spain
... We observed no clear daily pattern of parity. Both peaks showed high parous rates, but parity was higher during the second peak at dusk (78%) than during the first one at dawn (56%). The catches of recent parous fe- ...
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A cryptic species of Onchocerca (Nematoda: Onchocercidae) in blackflies (Simulium spp ) from southern California, USA
... Only a few blackfly species have been documented as putative vectors of O. cervipedis (s.l.) in North America; however, these few studies lack molecular confirmation of species identity of the nematode. Prosimulium ...
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Analyses of cDNA and recombinant protein for a potent vasoactive protein in saliva of a blood feeding black fly, Simulium vittatum
... 1995). Extracting salivary components (usually proteins) from insect glands in adequate quantities to address important biological questions and to elucidate modes of action requires extremely large numbers of organisms ...
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A New Record for Turkish Blackfly Fauna: Simulium (Eusimulium) petricolum (Rivosecchi, 1963) (Diptera, Simuliidae)
... A New Record for Turkish Blackfly Fauna: Simulium Eusimulium petricolum Rivosecchi, 1963 Diptera, Simuliidae Ayşe KALAFAT.. Eskişehir Osmangazi University, Science and Arts Faculty, Depa[r] ...
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Purification and characterization of a novel defensin from the salivary glands of the black fly, Simulium bannaense
... Methods: A novel cationic defensin designated SibaDef was purified using reverse phase high-performance liquid chromatography (RP-HPLC) from the salivary glands of the black fly Simulium bannaense. The amino acid ...
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The Performance of Simulium Hargreavesi Larvae Reared Under Three Contrasting Gradients and Current Velocities.
... Observations of water quality in the three gradients indicated less DO at high temperatures and more at lower temperatures. This is because more oxygen dissolves at lower than at higher temperatures. It was also noted ...
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The impact of Merowe Dam on Simulium hamedense vector of onchocerciasis in Abu Hamed focus Northern Sudan
... Few studies have reported the impact of dams on onchocerciasis transmission in Africa and Sudan [12-19]. In this study, black fly breeding has not been established downstream of Merowe Dam. This finding is supported by ...
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Tests of conspecificity for allopatric vectors: Simulium nodosum and Simulium shirakii (Diptera: Simuliidae) in Asia
... Habitat characteristics that typically differ between closely related species, especially stream size [35], are broadly overlapping among populations from Taiwan and the mainland, in agreement with records from the ...
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