Last Updated: 02/05/2025

Identifying the mechanisms of insecticide resistance in Anopheles gambiae s.s. and Anopheles arabiensis in Chikwawa, Malawi

Objectives

This project aims to use transcriptomic approaches to characterize expression patterns linked to insecticide resistance in Anopheles gambiae s.s. and An. arabiensis in Chikwawa, an area of high malaria transmission.

Rationale and Abstract

Malaria is a major cause of morbidity and mortality in Malawi. There has been an increase in the use of insecticides for malaria control either through Long Lasting Insecticide Treated Bednets or Insecticide Residual Spraying. Insecticide resistance in the primary malaria vectors has been reported and may impact the efficacy of current anti-vector control strategies. To maximise the efficacy and to ensure continued use of these insecticides it is necessary for the National Malaria Control Programme (NMCP) to develop an Insecticide Resistance Management (IRM) plan. The IRM plan will be most effective if we have detailed understanding of the genes which are associated with the resistance phenotype. The study will establish the resistance patterns in the common malaria vectors and the molecular markers which can be used to predict and manage insecticide resistance.

Date

Sep 2017 — Dec 2020

Total Project Funding

$191,222

Funding Details
Wellcome Trust, United Kingdom

Grant ID: 208292/Z/17/Z
GBP 147,484
Country / Project Site(s)

United Kingdom

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