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RSV Vaccine Pregnancy Registry

The research question is: What is the risk of adverse pregnancy outcomes, including preterm birth, hypertensive disorders, and other maternal and neonatal/infant outcomes, following exposure to RSV vaccine between 32 weeks, 0 days and 36 weeks, 6 days of gestation in the CorEvitas Respiratory Syncytial Virus Vaccine Pregnancy Registry (RSV-PR)? The primary study objective is to estimate the risk of (1) preterm birth and (2) hypertensive disorders following exposure to RSV vaccine between 32 weeks, 0 days and 36 weeks, 6 days of gestation. The secondary study objective is to estimate the risk of other safety outcomes of interest following exposure to RSV vaccine between 32 weeks, 0 days and 36 weeks, 6 days of gestation, including: * Pregnancy-related outcomes: stillbirth, premature labor, premature rupture of membranes, preterm premature rupture of membranes, cesarean delivery, prolonged maternal duration of hospital stay * Maternal outcomes: thrombocytopenia, Guillain-Barré syndrome, other immune-mediated demyelinating conditions, polyneuropathies, atrial fibrillation, maternal death * Neonatal/infant outcomes: small for gestational age, large for gestational age, low birth weight, admission to a neonatal intensive care unit (NICU), NICU duration of stay, mechanical ventilation in neonatal period, neonatal death, postnatal growth at 1 year of age The exploratory study objective is to describe the most frequently reported maternal adverse events following exposure to RSV vaccine between 32 weeks, 0 days and 36 weeks, 6 days of gestation.