Modelling the impact of artemisinin combination therapy and long-acting treatments on malaria transmission intensity
2008

Modeling the Impact of Antimalarial Treatments on Malaria Spread

publication Evidence: moderate

Author Information

Author(s): Lucy Okell, CJ Drakeley, T Bousema, CJ Whitty, AC Ghani

Hypothesis

How will a switch to artemisinin-based combination therapies affect malaria prevalence and incidence in endemic regions?

Conclusion

The study predicts that artemisinin-based combination therapies can significantly reduce malaria transmission, especially in low-transmission areas.

Supporting Evidence

  • The model predicts that gametocytocidal drugs may reduce malaria transmission more effectively in low-transmission settings.
  • Prevalence reductions can only be as high as 50% with 100% ACT coverage.
  • Asymptomatic carriage and dormancy in malaria parasites are significant challenges to elimination efforts.

Takeaway

This study looks at how changing malaria treatments can help stop the spread of the disease, especially in places where malaria is less common.

Methodology

The study used a mathematical model based on data from a large cross-sectional survey in Tanzania to estimate the effects of ACT introduction.

Limitations

The model's predictions are based on ideal conditions of 100% ACT coverage, which may not be realistic in practice.

Participant Demographics

Individuals from six different transmission settings in Tanzania.

Digital Object Identifier (DOI)

10.1371/journal.pmed.0050226

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