ArticleProceedings of the National Academy of Sciences of the United States of America2019
Precision mapping of snail habitat provides a powerful indicator of human schistosomiasis transmission.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
46 citing papers in PubMed.
- Trial
- Fine-scale heterogeneity inProceedings of the National Academy of Sciences of the United States of America · 2020Trial
- Pharos: a mobile GIS application for network assessment and ground-truth mapping to support mHealth study design in low-resource settings.International journal of geographical information science : IJGIS · 2026Article
- Mapping and phylogeny of Biomphalaria snail in the Adamawa Region of Cameroon: A step towards vector control and schistosomiasis elimination.PLoS neglected tropical diseases · 2025Article
- Schistosomiasis and water resources development in Africa: A scoping review and multi-case evaluation of associated snail control.PLoS neglected tropical diseases · 2025Article
- Impact of Climate Change on Schistosomiasis Transmission and Distribution-Scoping Review.International journal of environmental research and public health · 2025Article
- The research contribution of the Schistosomiasis Collection at the Natural History Museum (SCAN): highlights, challenges and future directions.Infectious diseases of poverty · 2025Review
- Priority knowledge gaps for schistosomiasis research and development in the World Health Organization Africa Region.Infectious diseases of poverty · 2025Article
- The Sm14+GLA-SE Recombinant Vaccine AgainstVaccines · 2025Article
- Comparison of unmanned aerial vehicle imaging to ground truth walkthroughs for identifying and classifying trash sites serving as potential Aedes aegypti breeding grounds.Parasites & vectors · 2025Article
- Mapping of snail intermediate host habitats reveals variability in schistosome and non-schistosome trematode transmission in an endemic setting.Current research in parasitology & vector-borne diseases · 2025Article
- Human Schistosoma exposure risk in rice fields and an exploration of fish species for snail and schistosomiasis biocontrol.PLOS global public health · 2025Article
- Current water contact and Schistosoma mansoni infection have distinct determinants: a data-driven population-based study in rural Uganda.Nature communications · 2024Article
- Freshwater snail-borne parasitic diseases in Africa.Tropical medicine and health · 2024Review
- Integrated Serosurveillance for Onchocerciasis, Lymphatic Filariasis, and Schistosomiasis in North Darfur, Sudan.The American journal of tropical medicine and hygiene · 2024Article
- Climate and urbanization drive changes in the habitat suitability of Schistosoma mansoni competent snails in Brazil.Nature communications · 2024Article
- Re-assessing thermal response of schistosomiasis transmission risk: Evidence for a higher thermal optimum than previously predicted.PLoS neglected tropical diseases · 2024Article
- Re-assessing thermal response of schistosomiasis transmission risk: evidence for a higher thermal optimum than previously predicted.medRxiv : the preprint server for health sciences · 2024Article
- Large-scale spatial drivers of avian schistosomes in Northern Michigan inland lakes.Parasitology · 2024Article
- Spatio-temporal variability in transmission risk of human schistosomes and animal trematodes in a seasonally desiccating East African landscape.Proceedings. Biological sciences · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
25 authors.
Funding
Abstract
Recently, the World Health Organization recognized that efforts to interrupt schistosomiasis transmission through mass drug administration have been ineffective in some regions; one of their new recommended strategies for global schistosomiasis control emphasizes targeting the freshwater snails that transmit schistosome parasites. We sought to identify robust indicators that would enable precision targeting of these snails. At the site of the world's largest recorded schistosomiasis epidemic-the Lower Senegal River Basin in Senegal-intensive sampling revealed positive relationships between intermediate host snails (abundance, density, and prevalence) and human urogenital schistosomiasis reinfection (prevalence and intensity in schoolchildren after drug administration). However, we also found that snail distributions were so patchy in space and time that obtaining useful data required effort that exceeds what is feasible in standard monitoring and control campaigns. Instead, we identified several environmental proxies that were more effective than snail variables for predicting human infection: the area covered by suitable snail habitat (i.e., floating, nonemergent vegetation), the percent cover by suitable snail habitat, and size of the water contact area. Unlike snail surveys, which require hundreds of person-hours per site to conduct, habitat coverage and site area can be quickly estimated with drone or satellite imagery. This, in turn, makes possible large-scale, high-resolution estimation of human urogenital schistosomiasis risk to support targeting of both mass drug administration and snail control efforts.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.