FIG 3.

FL field mosquitoes have higher midgut infection for DENV-4H than for DENV-4L. Data are for field-acquired Aedes aegypti (COL) 14 days after infectious blood feeding with the DENV-4 Haiti (H) (red) or the DENV-4 laboratory (L) (blue) strain. (A) Infection rates of midgut and saliva samples; (B) midgut infection intensity; (C) saliva infection intensity. Dots represent individual mosquito samples, with medians and 95% confidence intervals per group combined from three biological replicates. *, P value of <0.05 via Fisher’s exact test for infection rates and Kruskal-Wallis and Dunn’s post hoc tests (midgut) or one-way ANOVA (saliva) for infection intensity.