FIG 6.
Transmission and infection rates of WNVIC and WNVΔSF1 in C. pipiens mosquitoes after an infectious blood meal. (A) Schematic overview of the experimental procedure. (B) Infection (Bodies), transmission (Saliva), and dissemination (Saliva/Bodies) rates of C. pipiens mosquitoes infected through an infectious blood meal containing WNVIC (n = 140) or WNVΔSF1 (n = 149). The infection, transmission, and dissemination rates are presented as percentages of the total number of mosquitoes. The data represent cumulative numbers from four independent experiments. The statistics were performed using Fisher exact tests. ns, not significant. (C) Titers of WNV-positive mosquito bodies and saliva samples of WNVIC or WNVΔSF1 blood meal-infected mosquitoes. Shown are the mean titers ± SEM. The statistics were performed using a two-tailed unpaired Mann-Whitney U test.