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. 2020 Oct 19;11:5278. doi: 10.1038/s41467-020-19096-y

Fig. 2. Protection by anti-ZIKV NS1 mAbs in pregnant hSTAT2 KI mice.

Fig. 2

Eight- to 16-week-old hSTAT2 KI female and male mice were mated. On E6.5, plugged females were administered 250 μg of the indicated murine (ac) or human (df) mAbs and inoculated subcutaneously with 106 FFU of ZIKV. For experiments with antibody cocktail treatment, mice received 125 μg of each mAb. Viral burden was assessed on E13.5 in maternal spleen (a, d), placenta (b, e), and fetal head (c, f). Viral burden data for the maternal spleen includes mice that were plugged but did not become pregnant. For each pregnant dam, five placentas and fetal heads were evaluated unless the total number of fetuses was less than 5. a Isotype, n = 16; Z15, n = 4; Z17, n = 6; Z15 + Z17, n = 7. b, c Isotype, n = 61; Z15 n = 20; Z17, n = 28; Z15 + Z17, n = 35. d Isotype, n = 9; ZIKV-292, n = 4; 749-A4 and 749-A4 LALA, n = 5. e, f Isotype, n = 45; ZIKV-292, n = 26; 749-A4, n = 20; 749-A4 LALA, n = 25. Data are pooled from at least three experiments (Kruskal–Wallis one-way ANOVA with Dunn’s post-test comparison between the indicated groups; *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001; a isotype vs. Z15 + Z17, p = 0.010; b isotype vs. Z17, p = 0.0006; isotype vs. Z15 + Z17, p < 0.0001; c isotype vs. Z17, p < 0.0001; isotype vs. Z15 + Z17, p < 0.0001; d isotype vs. ZIKV-292, p = 0.048; e isotype vs. ZIKV-292, p < 0.0001; isotype vs. 749-A4, p = 0.004; f isotype vs. ZIKV-292, p < 0.0001; isotype vs. 749-A4, p = 0.0003; 749-A4 vs. 749-A4 LALA, p = 0.002). Dotted lines denote the LOD.