Cx. pipiens survival following blood feeding. (A) Survival of WT-susceptible and WT-resistant Cx. pipiens following ingestion of WNV WT infectious bloodmeals. (B) Survival of MP20-susceptible and MP20-resistant Cx. pipiens following ingestion of WNV MP20 infectious bloodmeals. (C) Survival following bloodfeeding for WT-exposed, MP20-exposed, and unexposed Cx. pipiens. Significant differences in survival were identified between MP20-exposed mosquitoes and both WT-exposed and unexposed groups (log-rank, p<0.05).