Revisiting the epidemiology of schistosomiasis and soil-transmitted helminthiasis in Chad: insights for improved interventions.

ABSTRACT:

Background

Schistosomiasis (SCH) and soil-transmitted helminthiasis (STH) are endemic in Chad, particularly in areas with inadequate water, sanitation and hygiene (WASH) infrastructure. This study aimed to assess the prevalence and spatial distribution of SCH and STH among school-age children (SAC) to optimize mass drug administration (MDA) strategies.

Methods

A cross-sectional parasitological survey was conducted in 308 schools in 247 subdistricts across 25 health districts of seven provinces in Chad. Kato-Katz and urine filtration techniques were used to examine 15 828 SAC for Schistosoma haematobium, Schistosoma mansoni and STH. WASH conditions in schools and communities were also investigated.

Results

The prevalence of S. haematobium was 2.28%, while S. mansoni wa

SUBMITTER: Ndellejong CE 

PROVIDER: S-EPMC12709038 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature