The Pfizer-BioNTech and Moderna coronavirus vaccines are safe and effective in pregnant and breastfeeding women, according to a new study published Thursday in the American Journal of Obstetrics & Gynecology. The study also found that mothers can pass antibodies to their newborns. “That’s a very important piece of information to our patients,” Andrea Edlow, MD, the senior study author and a maternal-fetal medicine specialist at Massachusetts General Hospital, told ABC News. “We know that this vaccine works for you,” she added. The research team studied a group of 131 women who received the Pfizer or Moderna vaccine, including 84 pregnant,...