April 6, 2021

COVID-19 MRNA Vaccines Drive Differential Fc-Functional Profiles in Pregnant Lactating and Non-Pregnant Women

Category: Article Summary

Topic: Vaccines and Immunity

Keywords (Tags): pregnancy, vaccines

•  [Pre-print, not peer-reviewed] The antibody response induced by mRNA vaccines (Moderna and Pfizer-BioNTech) after the first dose was lower among pregnant (n=84) and lactating (n=31) women compared to non-pregnant age-matched controls (n=16), but after the second dose no significant differences were observed. Differences in antibody response after the first dose related to lower antibody titers and delayed kinetics in Fc-receptor-binding and antibody effector functions.

Atyeo et al. (Apr 5, 2021). COVID-19 MRNA Vaccines Drive Differential Fc-Functional Profiles in Pregnant Lactating and Non-Pregnant Women. Pre-print downloaded Apr 6 from https://doi.org/10.1101/2021.04.04.438404