FDA Shrugs Off Concerns About Premature Births, Approves Pfizer RSV Vaccine for Pregnant Women FDA Shrugs Off Concerns About Premature Births, Approves Pfizer RSV Vaccine for Pregnant Women August 23, 2023 The U.S. Food and Drug Administration on Monday approved Pfizer’s Abrysvo vaccine, a maternal vaccine meant to protect infants against respiratory syncytial virus, or RSV,…