Fig. 5From: Intensity and mechanisms of deltamethrin and permethrin resistance in Anopheles gambiae s.l. populations in southern BeninThe mortality rate for An. gambiae s.l. after exposure to increasing doses of permethrin associated with the synergist PBO, using the WHO tube test (error bars represent the standard errors of the mortality rate at the y-axis; below the broken red line suggests suspected resistance, below the solid line signifies confirmed resistance)Back to article page