Today, CDC recommended the first respiratory syncytial virus (RSV) vaccine for pregnant people to protect their newborn from severe RSV illness. RSV is the leading cause of hospitalization for U.S. infants. This new vaccine, Pfizer’s bivalent RSVpreF vaccine (trade name Abrysvo TM), has been shown to reduce the risk of RSV hospitalization for babies by 57 percent in the first six months after birth.