Mass Treatment for Malaria Control
Author Information
Author(s): Lucy C. Okell, Jamie T. Griffin, Immo Kleinschmidt, T. Déirdre Hollingsworth, Thomas S. Churcher, Michael J. White, Teun Bousema, Chris J. Drakeley, Azra C. Ghani
Primary Institution: Imperial College London
Hypothesis
Can mass treatment strategies effectively reduce malaria transmission in different endemic settings?
Conclusion
Mass treatment needs to be repeated or combined with other interventions for long-term impact in many endemic settings.
Supporting Evidence
- Mass treatment can provide a longer-term benefit in areas with lower malaria transmission.
- Repeated annual mass treatment at 80% coverage could achieve around 25% reduction in infectious bites in moderate-to-high transmission settings.
- In a limited number of settings, five closely spaced rounds of mass treatment combined with vector control could make temporary elimination feasible.
- Mass treatment needs to be carefully weighed against the risks of increasing drug selection pressure.
Takeaway
Giving medicine to everyone in a community can help stop the spread of malaria, but it needs to be done more than once to really work.
Methodology
A mathematical transmission model was used to explore the impact of mass treatment strategies in various scenarios of malaria transmission.
Potential Biases
Potential bias due to assumptions about treatment participation and the efficacy of treatments.
Limitations
The model does not account for spatial structure and assumes a single mosquito population interacts with a single human population.
Participant Demographics
The study involved populations with varying levels of malaria transmission, specifically focusing on areas with low-to-medium transmission.
Digital Object Identifier (DOI)
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