Flow cytometry was performed on immune cells from the uteruses and spleens of ZIKV-infected (red triangles) and mock-infected (blue circles) pregnant and non-pregnant mice at day 3 post infection, and the frequencies of CD68+ (a-b), CD11b+ (c), and CD11c+ (d) cells were measured. Representative pseudocolor plots of CD68 gating are shown for the (a) (uterus) and (b) (spleen). *p<0.05, **p <0.01, ***p<0.001; one-way ANOVA and Tukey’s multiple comparisons test. N=39 (2 independent experiments of 19–20 mice, N=8 mock non-pregnant, N=11 mock pregnant, N=10 ZIKV non-pregnant, N=10 ZIKV pregnant). Error bars represent the mean ± standard deviation.