Figure 3

Results of WHO bioassay test for insecticide susceptibility status of wild female Anopheles funestus (white bars) and Anopheles arabiensis (grey bars) from the study sites in the Kilombero Valley, Tanzania, in January 2013 and June 2014. The graph shows percentage 24 hours mortality rate after a one-hour exposure to the WHO diagnostic doses of insecticide. The minimum sample size for these assays was 100.