ABSTRACT
An epidemiological survey in September 1991 investigated the prevalence (per cent) and intensity (epg) of soil-transmitted helminth infections in three communities (Rowollon; Kroo Bay and Foria); Sierra Leone. Evidence was found for infections with ascaris lumbricoides; hookworm (probably necator americanus); trichuris trichiura; strongyloides stercoralis and schistosoma mansoni; using a modified kato-katz technique
Subject(s)
Ascariasis , Community Health Services , Cross-Sectional Studies , Helminthiasis/epidemiology , Schistosomiasis , TrichuriasisABSTRACT
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
Subject(s)
Community Health Services , Helminthiasis/diagnosis , Intestinal Diseases , Levamisole/therapeutic use , Necator americanus/parasitology , Necatoriasis/diagnosisABSTRACT
A survey was carried out during August and September 1990 to determine the prevalence of intestinal helminth infections in mothers and their young children from an urban site (Freetown) and a rural site (Alicalia; Nothern Province) in Sierra Leone. Stool samples were examined microscopically by a modified version of the kato katz method. In the mothers the overall prevalences of the species of soil-transmitted helminth detected were ascaris lumbricoides (40.2 per cent); necator americanus (25.9 per cent) and trichuris trichiura (35.4 per cent). [abstract terminated]
Subject(s)
Ascariasis , Child Health Services , Helminthiasis , Intestinal Diseases , Maternal Health Services , Necatoriasis , TrichuriasisABSTRACT
Three hundred and forty-three (343) children living in Freetown had their stools examined for intestinal parasitic infection. The prevalence rates found are Trichuris trichuria 80.5 per cent; Ascaris Lumbricoides 43.4 per cent; Nectar americanus 20.7 per cent; Giardia Intestinalis 4.7 per cent and Schistosoma Mansoni 1 per cent. Several of the children were found to have more than one of the main helminth infection