Figure 3: Increasingly zoophilic mosquito populations (less human feeding) make it harder to eliminate malaria (R0 < 1) with interventions that mosquitoes only encounter when attempting to feed on human blood.
From: Increasing the potential for malaria elimination by targeting zoophilic vectors

Mosquitoes here can bite either human or non-human hosts at each feed, and the percent that choose to bite humans is determined by mosquito preference. Inset shows an expanded view close to elimination threshold.