A new study published in the American Journal of Obstetrics and Gynecology has noted that the Pfizer/BioNTech and Moderna COVID-19 vaccines are effective among pregnant and lactating women, and that they can pass protective antibodies to their newborns.

Researchers at Massachusetts General Hospital, Brigham and Womens Hospital and the Ragon Institute of MGH, MIT and Harvard evaluated 131 women who were administered either the Pfizer/BioNTech or Moderna vaccine. Eighty four of these women were pregnant, 31 were lactating and 16 were not pregnant. Investigators collected samples from the study participants from December 17, 2020 through March 2, 2021. The vaccine-induced antibody levels appeared to be equivalent in pregnant and lactating women, compared to non-pregnant women. The antibody levels were considerably higher than the levels reached after coronavirus infection during pregnancy. It was also noted that these women passed protective antibodies to their newborns, measured in breast milk and placenta… (CNN, March 26, 2021)