Figure 3
Results of monthly bioassays showing residual activity of various LLINs when tested using either the standard WHO cone assays or the wire ball method (two intersecting wire cycles, each measuring 15 cm diameter, around which the test net is wrapped to form a netting ball). The controls in these assays consisted of a non-insecticidal mosquito net. No assays were conducted on the third month due to lack of mosquitoes.