Figure 4From: Efficacy of long-lasting insecticidal nets in use in Macha, Zambia, against the local Anopheles arabiensis populationDistribution of deltamethrin in sections from the top, middle, and bottom of LLINs. Boxplots with median, range, quartiles, and outliers are shown. There were significantly lower residual deltamethrin concentrations in the middle and lower sections of the nets (p < 0.0001).Back to article page