Biting on human body parts of Simulium vectors and its implication for the manifestation of Onchocerca nodules along Osun River, southwestern Nigeria

Autor: Monsuru Adebayo Adeleke , Sammy Olufemi Sam-Wobo , Olaoluwa Pheabian Akinwale , Ganiyu Olatunji Olatunde & Chiedu Felix Mafiana
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Journal of Vector Borne Diseases, Vol 49, Iss 3, Pp 140-142 (2012)
Druh dokumentu: article
ISSN: 0972-9062
Popis: Background: The biting preference of Simulium vectors has been known to influence the distribution ofOnchocerca nodules and microfilariae in human body. There is, however, variation in biting pattern of Simuliumflies in different geographical locations. This study investigates the biting pattern on human parts by Simuliumvectors along Osun river system where Simulium soubrense Beffa form has been implicated as the dominantvector and its possible implication on the distribution of Onchocerca nodules on human body along the river.Methods: Flies were collected by consented fly capturers on exposed human parts namely head/neck region,arms, upper limb and lower limb in Osun Eleja and Osun Budepo along Osun river in the wet season (August–September) and the dry season (November–December) in 2008. The residents of the communities were alsoscreened for palpable Onchocerca nodules.Results: The results showed that number of flies collected below the ankle region was significantly higher thanthe number collected on other exposed parts (p
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