Figure 5From: Efficacy of long-lasting insecticidal nets in use in Macha, Zambia, against the local Anopheles arabiensis populationDeltamethrin concentration in the middle sections of nets, sorted by 0, 1-3, and 4+ washes. There was a significant correlation between number of washes and residual deltamethrin concentration (p = 0.001).Back to article page