Prevalence and intensity of soil-transmitted helminth infections in Narok and Bomet Counties, Kenya: Evidence from program monitoring
Rattachement africain : Kenya, Ouganda, us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
BACKGROUND: The backbone of Kenya's soil-transmitted helminthiasis control program is the periodic distribution of anti-helminthic preventive chemotherapy (PC). PC distribution has been conducted since 2012 through the National School-Based Deworming Programme, which deworms school-age children (SAC, 5-14 years) living in areas at high risk for soil-transmitted helminth (STH) infections. After nearly a decade of deworming, the Ministry of Health sought to generate evidence for program monitoring by estimating the prevalence and intensity of STH infection in Narok and Bomet counties among at-risk groups: preschool-aged children (PSAC, 2-4 years), SAC, and women of reproductive age (WRA, 15-49 years), of which only SAC are covered by the deworming program. METHODS: During August and December of 2021, we conducted cross-sectional, population-based household surveys in Narok and Bomet counties, using multi-stage, cluster random sampling among resident PSAC, SAC, and WRA. Individual and household questionnaires were administered using an electronic mobile platform. Stool samples were collected and tested for roundworms (Ascaris lumbricoides), hookworms (Necator americanus, Ancylostoma duodenale), and whipworms (Trichuris trichura) using the Kato-Katz method. RESULTS: Stool samples were provided by 1,062 PSAC, 1,922 SAC, and 364 WRA. Results indicated that the prevalence of any STH infection in Bomet county was similar among SAC (16.2% [upper 95% design-corrected confidence interval [U95% CI]: 23.1%]) and PSAC (15.8% [U95% CI: 21.7%]). In Narok county, STH prevalence was marginally higher among PSAC (12.8% [U95% CI: 18.2%]) compared to SAC (11.3% [U95% CI: 16.2%]). Moderate-to-high intensity infection prevalence among PSAC and SAC exceeded the morbidity elimination threshold of 2% in both counties. A. lumbricoides and T. trichura were most identified; few hookworm infections were detected. CONCLUSIONS: STH infections remain a public health problem in Narok and Bomet counties. There may be a need to expand PC distribution to include risk groups beyond SAC during deworming exercises, as envisioned in the Breaking Transmission Strategy, to hasten progress toward the achievement of STH as a public health problem.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Prevalence and intensity of soil-transmitted helminth infections in Narok and Bomet Counties, Kenya: Evidence from program monitoring
- Date Crossref
- 30/12/2025
- Éditeur
- Public Library of Science (PLoS)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Ministry of Health Division of Vector-Borne and Neglected Tropical Diseases Nairobi, Kenya (code pays fourni par la source)Organisme public
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Kenya Medical Research Institute Nairobi, Kenya (code pays fourni par la source)Structure de recherche
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African Field Epidemiology Network Kampala, Ouganda (code pays fourni par la source)Organisation à but non lucratif
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The Task Force for Global Health pays non établi dans la noticeOrganisation à but non lucratif
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Kenyatta National Hospital Kenya (code pays fourni par la source)Établissement de santé
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Field Epidemiology and Laboratory Training Program Nairobi, Kenya (pays nommé en fin d’affiliation)Structure de recherche
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Children Without Worms pays non établi dans la noticeInstitution
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National Public Health Institute Nairobi, Kenya (pays nommé en fin d’affiliation)Structure de recherche
Division of Vector-Borne and Neglected Tropical Diseases — Ministry of Health (Nairobi, Kenya), Kenya Medical Research Institute (Nairobi, Kenya) et African Field Epidemiology Network (Kampala, Ouganda), avec 5 autres affiliations. Pays d’affiliation : Kenya, Ouganda.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.