ABSTRACT
An epidemiological survey was carried out in May 1990 to determine the prevalence of intestinal helminth infections in children (0-5years) living in the Moyamba District; Southern Province; Sierra Leone. On the basis of nematode eggs and larvae observed during microscopic examination of stools samples obtained from 305 children; evidence for infections with the following species of helminth (per cent prevalence) was obtained : ascaris lumbricoides (28.2); necator americanus (19.3); trichuris trichiura (10.8); strongyloides fuellborni (8.9); strongyloides stercoralis (4.3) and enterobious vermicularis (0.7)
Subject(s)
Ascariasis , Enterobiasis , Helminthiasis , Helminthiasis/epidemiology , Intestinal Diseases , Necatoriasis , Strongyloidiasis , TrichuriasisABSTRACT
Fifty clinically anaemic children aged 6-9 years old were selected in the Bo; Southern Province; Sierra Leone during April 1990. All had their stools examined for stages of intestinal helminth infections. Twenty-one were judged to be positive for hookworm on the detection of eggs in stools. After treatment with lavemisole; 48 hour stool collections were performed on 15 of the heavily infected children. Adult hookworms were isolated from the specimens of 7 individuals; and preserved in 10 per cent aqueous formalin solution. the worms were later examined microscopically and shown to possess ventral cutting plates; fused and bared spicules; and a bifid nature of the tips of the dorsal rays of the male bursa; confirming their identification as necator americanus