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Investigation into the prevalence of urinary schistosomiasis in the Agulu Lake area of Anambra State, Nigeria

Published online by Cambridge University Press:  05 June 2009

A.C. Emejulu ,
F.F. Alabaronye ,
H.M.G. Ezenwaji  and
F.C. Okafor
A.C. Emejulu
Affiliation:
Department of Zoology, PO Box 3097, University of Nigeria, Nsukka, Enugu State, Nigeria
F.F. Alabaronye
Affiliation:
Department of Zoology, PO Box 3097, University of Nigeria, Nsukka, Enugu State, Nigeria
H.M.G. Ezenwaji
Affiliation:
Department of Zoology, PO Box 3097, University of Nigeria, Nsukka, Enugu State, Nigeria
F.C. Okafor
Affiliation:
Department of Zoology, PO Box 3097, University of Nigeria, Nsukka, Enugu State, Nigeria
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Abstract

In epidemiological surveys for urinary schistosomiasis caused by Schistosoma haematobium in communities around Agulu Lake, Anambra State, Nigeria, between 1990 and 1992, the infection was found to be endemic in the area, especially in three towns: Nri, Agulu, and Adazi Nnukwu. The prevalence rates varied between these communities and with the year. Inter-town prevalence rates ranged from 5.96% to 54.00%. Intravillage prevalence rates ranged between 5.50% to 96.43%. Prevalence rates were highest in villages very close to Agulu lake. There was no significant difference in prevalence between the schools. Host age, but not sex, was found to play a significant role in prevalence and intensity of infection. There was also a strong correlation between visible haematuria and egg count per 10 ml urine, but eggs could be isolated in urine samples of different shades of coloration. Analysis of incidence of infection in these communities shows that Schistosoma haematobium incidence is high in Nri (55.17%) and low at Adazi Nnukwu (5.26%). Both Bulinus globosus and B. truncatus were found in the lake and both shed mammalian bifid schistosome cercariae.

Type
Research Papers
Information
Journal of Helminthology , Volume 68 , Issue 2 , June 1994 , pp. 119 - 123
Copyright
Copyright © Cambridge University Press 1994

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