Fig. 5.
Estimates of the survival of An. arabiensis after blood feeding on control and ivermectin-treated cattle. The effects of ivermectin-treated cattle on survival of mosquitoes were estimated at different time points: a Day zero, b Day 3, c Day 6, d Day 9, e Day 12, f Day 15, g Day 18, and h Day 21 post-treatment. The lines represent the survival function as estimated from the fitting Cox proportional hazard model (controlling for random variation of between individual cattle)