Spatial and temporal distribution of soil-transmitted helminth infection in sub-Saharan Africa: a systematic review and geostatistical meta-analysis

by Dimitrios-Alexios Karagiannis-Voules, Patricia Biedermann, Uwem F Ekpo et al.
The Lancet Infectious Diseases, Early Online Publication, 3 December 2014

11 pp. 3.0 MB:
http://download.thelancet.com/pdfs/journals/laninf/PIIS1473309914710047.pdfS1473309914X70763_cov150h

Interest is growing in predictive risk mapping for neglected tropical diseases (NTDs), particularly to scale up preventive chemotherapy, surveillance, and elimination efforts. Soil-transmitted helminths (hookworm, Ascaris lumbricoides, and Trichuris trichiura) are the most widespread NTDs, but broad geographical analyses are scarce. The authors conclude that patterns of soil-transmitted helminth infection in sub-Saharan Africa have changed and the prevalence of infection has declined substantially in this millennium, probably due to socioeconomic development and large-scale deworming programmes. The global control strategy should be reassessed, with emphasis given also to adults to progress towards local elimination.

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