Abstract:
BACKGROUND:Malaria transmission is highly heterogeneous in most settings, resulting in the formation of recognizable malaria hotspots. Targeting these hotspots might represent a highly efficacious way of controlling or eliminating malaria if the hotspots fuel malaria transmission to the wider community. METHODS/DESIGN:Hotspots of malaria will be determined based on spatial patterns in age-adjusted prevalence and density of antibodies against malaria antigens apical membrane antigen-1 and merozoite surface protein-1. The community effect of interventions targeted at these hotspots will be determined. The intervention will comprise larviciding, focal screening and treatment of the human population, distribution of long-lasting insecticide-treated nets and indoor residual spraying. The impact of the intervention will be determined inside and up to 500 m outside the targeted hotspots by PCR-based parasite prevalence in cross-sectional surveys, malaria morbidity by passive case detection in selected facilities and entomological monitoring of larval and adult Anopheles populations. DISCUSSION:This study aims to provide direct evidence for a community effect of hotspot-targeted interventions. The trial is powered to detect large effects on malaria transmission in the context of ongoing malaria interventions. Follow-up studies will be needed to determine the effect of individual components of the interventions and the cost-effectiveness of a hotspot-targeted approach, where savings made by reducing the number of compounds that need to receive interventions should outweigh the costs of hotspot-detection. TRIAL REGISTRATION:NCT01575613. The protocol was registered online on 20 March 2012; the first community was randomized on 26 March 2012.
journal_name
Trialsjournal_title
Trialsauthors
Bousema T,Stevenson J,Baidjoe A,Stresman G,Griffin JT,Kleinschmidt I,Remarque EJ,Vulule J,Bayoh N,Laserson K,Desai M,Sauerwein R,Drakeley C,Cox Jdoi
10.1186/1745-6215-14-36subject
Has Abstractpub_date
2013-02-02 00:00:00pages
36issn
1745-6215pii
1745-6215-14-36journal_volume
14pub_type
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