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. Author manuscript; available in PMC: 2021 Jun 26.
Published in final edited form as: Vaccine. 2020 May 29;38(31):4869–4876. doi: 10.1016/j.vaccine.2020.05.036

Figure 1. Higher concentrations of vaccine-elicited IgG in serum and cord blood of mother-infant pairs that received Tdap vaccination during pregnancy vs prior to pregnancy.

Figure 1.

IgG levels were assessed in maternal serum (circle) and infant cord blood (square) from the Tdap before pregnancy and Tdap during pregnancy groups using a pediatric vaccine multiplex assay (PVMA). Horizontal lines indicate the median IgG concentrations. **P < 0.01, *** P < 0.001, Wilcoxon Rank Sum Test.