Figure 2.

Mean number of oocysts per midgut in insecticide exposed and control An. gambiae strains. Number of oocysts per female midgut is presented as a scatter dot plot for each mosquito strain and for each feeding assay ((a) Acerkis; (b) Kdrkis); and for each mosquito strain among all six feeding assays (c). The gametocyte density for each blood donor (per µl of blood) is indicated in parentheses. Blue (left hand black) dots represent the infection intensity for individual mosquitoes that were not exposed to insecticides and red (right hand grey) dots for mosquitoes that were exposed for 1 h to insecticides. Bars above and below the means represent the standard errors of the mean. Tests of significance were corrected for multiple testing using the Bonferroni procedure. Asterisks indicate the significance level: *p < 0.05; **p < 0.01; ***p < 0.001. (Online version in colour.)