The prevalence, intensity and clinical manifestations of Onchocerca volvulus infection in Toro local government area of Bauchi State, Nigeria.

Abstract:

:Between January and October 1994, a study of the prevalence, intensity and clinical manifestations of onchocerciasis in nine communities of Toro local government area of Bauchi State, Nigeria was undertaken using the skin-snip method. Of the 1117 inhabitants examined, 188 (16.8%) were positive for microfilariae of Onchocerca volvulus. The prevalence of onchocerciasis was significantly higher (P < 0.05) among males than females, in subjects 21 years of age and above than in those in the first two decades of life, in nomads, farmers, hunters and fishermen than smiths and traders. Intensity of infection was light, not exceeding a geometric mean of 5.3 microfilaria per 2 mm skin bite. Preponderance of positive cases below 20 years presented no chronic signs. Conversely, persons above 20 years had higher microfilaria counts which coincides with the period when most clinical signs manifest. Microfilarial-rate and -density in relation to age were closely associated (r = 0.75, P < 0.001). The need for a sustained mass distribution of Mectizan in these communities is highlighted.

authors

Anosike JC,Celestine,Onwuliri OE,Onwuliri VA

doi

10.1078/1438-4639-00052

keywords:

subject

Has Abstract

pub_date

2001-07-01 00:00:00

pages

459-64

issue

5-6

eissn

1438-4639

issn

1618-131X

pii

S1438-4639(04)70058-9

journal_volume

203

pub_type

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