The research, published Thursday in the American Journal of Obstetrics and Gynecology, examined 131 vaccine recipients, including 84 who were pregnant, 31 who were breastfeeding, and 16 who weren't pregnant as a control group.
Earlier studies suggested the COVID-19 vaccines from Pfizer-BioNTech and Moderna would be safe and effective. But this is the largest study to date looking at the immune responses of pregnant and lactating women to vaccination. Read more.