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Non-household environments make a major contribution to dengue transmission: implications for vector control
Víctor Hugo Peña-García1,2, A Desiree LaBeaud3, Bryson A Ndenga4
1Department of Biology, Stanford University, Stanford, CA, USA.
Royal Society Open Science
|April 17, 2025
Summary
Dengue control must expand beyond households to include public spaces like workplaces and markets, where over half of infections occur. Integrating non-household interventions significantly enhances dengue prevention and epidemic response.
Area of Science:
- Medical Entomology
- Epidemiology
- Public Health
Background:
- * Increasing incidence of Aedes-borne diseases despite current control strategies.
- * Traditional control focuses on household (HH) environments, overlooking potential non-household (NH) contributions.
Purpose of the Study:
- * To assess the importance of NH environments in dengue transmission.
- * To evaluate the effectiveness of vector control strategies in both HH and NH settings.
Main Methods:
- * Developed an agent-based model integrating field data and human activity patterns.
- * Simulated dengue transmission across household and five non-household environments.
- * Evaluated preventive and reactive vector control scenarios.
Main Results:
- * Over 50% of dengue infections estimated to occur in NH settings (workplaces, markets, recreational sites).
- * Container removal more effective in NH than HH environments.
- * Early, high-coverage interventions, especially in NH areas, yielded greater case reductions.
Conclusions:
- * Vector control strategies need to incorporate NH environments for effective dengue management.
- * Optimizing limited resources requires evidence-based targeting of interventions in both HH and NH settings.
- * Local ecological factors significantly influence control strategy outcomes.
