Figure 5From: Long-term trends in Anopheles gambiae insecticide resistance in Côte d’IvoireRecords of resistance to different insecticides classes in relation to the number of classes tested in the two decades (a) and (b) spanning 1993 to 2012. Inset key shows how colours and shapes of the collection site markers illustrate the number of insecticide classes to which the mosquitoes were resistant and the number tested, respectively.Back to article page