Distribution of pyrethroid resistance in Africa using data collected between 2000 to 2010
Due to the excellent results from LLIN campaigns the adoption of pyrethroid treated nets as a key intervention in the battle against malaria has reached new heights. In many endemic countries, usage had reached 80% by 2011. Yet the pressure of using a single class of insecticides, pyrethroids, in all LNs as well as for Indoor Residual Spraying and agriculture has resulted in insecticide resistance in many parts of the world, particularly in Africa.
Reference: Ranson et al, Trends in Parasitology, Feb 2011, Vol 27, No.2
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