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Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Daily Overview

Session

CP3.1: Tropical Health 10 min talks sponsored by QIMR Berghofer, Centre for Tropical Health & Emerging Diseases
Location: Lecture Theatre 3
Session Chair: Darren Gray, QIMR Berghofer
Session Chair: Chika Zumuk, Queensland Institute of Medical Research

Presentation 1

Epidemiology of soil-transmitted helminth infections in urban slum and tea garden communities in Northeastern Bangladesh

Mandira Mukutmoni¹, Tilak Chandra Nath², Adam Bartlett¹, Susana Vaz Nery¹

1: Global Health Program, Kirby Institute, University of New South Wales, Sydney, Australia; 2: Department of Parasitology, Sylhet Agricultural University, Bangladesh

Soil-transmitted helminth (STH) infections remain prevalent in northeastern Bangladesh despite the national school-based deworming programme implemented since 2008. This study reports STH epidemiology in underprivileged communities of Sylhet and Moulvibazar districts.

A total of 772 stool samples were collected from 16 urban slum and tea garden communities between May and October 2025 and analysed using sodium nitrate flotation, Kato-Katz, and Baermann techniques. Descriptive statistics estimated prevalence, adjusted for clustering, with 95% confidence intervals.

Based on sodium-nitrate-flotation, overall STH prevalence was 35.1% (271/772; 95% CI 26.2-45.2), with Ascaris lumbricoides predominating at 31.1% (240/772; 21.8-42.2), followed by hookworm (38/772; 4.9%, 2.6-9.1) and Trichuris trichiura (34/772; 4.4%, 2.0-9.5). All infections were of light to moderate intensity. STH prevalence ranged from 12.5% to 70.9% across communities, with similar levels in tea garden (57/162; 35.2%) and slum settings (214/610; 35.1%). Using Kato-Katz, overall prevalence was 28.4% (219/772; 20.1-38.4), with A. lumbricoides predominant (193/772; 25.0%, 16.5-36.1) followed by T. trichiura (26/772; 3.4%, 1.3-8.2) and hookworm (19/772; 2.5%, 1.4-4.4). SNF was more sensitive than Kato-Katz, with concordance analysis planned. Strongyloides spp. prevalence by Baermann was lower than expected (0.4%; 3/772; 0.1-1.6).

These findings highlight persistent transmission and community-level variation, supporting community-based control strategies targeted to high-risk areas.