Soil-transmitted helminthiasis in Laos: A community-wide cross-sectional study of humans and dogs in a mass drug administration environment

J.V. Conlan; B. Khamlome; K. Vongxay; A. Elliot; L. Pallant; B. Sripa; S.D. Blacksell; S. Fenwick; R.C.A. Thompson

doi:10.4269/ajtmh.2012.11-0413

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Soil-transmitted helminthiasis in Laos: A community-wide cross-sectional study of humans and dogs in a mass drug administration environment

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Soil-transmitted helminthiasis in Laos: A community-wide cross-sectional study of humans and dogs in a mass drug administration environment

J.V. Conlan, B. Khamlome, K. Vongxay, A. Elliot, L. Pallant, B. Sripa, S.D. Blacksell, S. Fenwick and R.C.A. Thompson

American Journal of Tropical Medicine and Hygiene, Vol.86(4), pp.624-634

2012

DOI: https://doi.org/10.4269/ajtmh.2012.11-0413

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Abstract

We conducted a community cross-sectional survey of soil-transmitted helminthiasis in humans and dogs in four provinces in northern Laos. We collected and tested human and dog fecal samples and analyzed results against sociodemographic data. The prevalence of Ascaris lumbricoides, Trichuris trichiura, hookworm, and Strongyloides stercoralis was 26.1% (95% confidence interval [CI,1 = 23.7-28.4%), 41.5% (95% CI = 38.8-44.1%), 46.3% (95% CI = 43.3-49.0%), and 8.9% (95% CI = 7.4-10.4%), respectively. We observed strong heterogeneity for helminthiasis by ethnicity, province, and wealth status, which coincided with a risk profile demonstrating that Mon-Khmer persons and the poorest households are highly vulnerable. Necator americanus was the dominant hookworm species infecting humans and Ancylostoma ceylanicum was the only Ancylastoma species detected. Hookworm prevalence in village dogs was 94%, and the dominant species was A. ceylanicum. Necator americanus was also detected in dogs. It appears that dogs have a role in human hookworm transmission and warrant further investigation.

Details

Title: Soil-transmitted helminthiasis in Laos: A community-wide cross-sectional study of humans and dogs in a mass drug administration environment
Authors/Creators: J.V. Conlan (Author/Creator) - Murdoch University
B. Khamlome (Author/Creator)
K. Vongxay (Author/Creator)
A. Elliot (Author/Creator)
L. Pallant (Author/Creator)
B. Sripa (Author/Creator)
S.D. Blacksell (Author/Creator)
S. Fenwick (Author/Creator)
R.C.A. Thompson (Author/Creator)
Publication Details: American Journal of Tropical Medicine and Hygiene, Vol.86(4), pp.624-634
Publisher: American Society of Tropical Medicine and Hygiene
Identifiers: 991005542587007891
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 1 Clinical & Life Sciences; 1.163 Parasitology - General; 1.163.446 Schistosomiasis
Web Of Science research areas: Public, Environmental & Occupational Health; Tropical Medicine
ESI research areas: Clinical Medicine