
With the Food and Drug Administration's Aug. 21, 2023, approval of the first vaccine against respiratory syncytial virus, or RSV, for use during late pregnancy, the U.S. will soon have a major new tool at its disposal to protect infants against the highly contagious virus.
RSV is the most common cause of lower respiratory infections in young children and can be especially severe for infants under 6 months of age. It is the leading cause of infant hospitalization in the U.S., according to the Centers for Disease Control and Prevention. Each year, RSV is associated with half a million emergency room visits, nearly 100,000 hospitalizations and 300 deaths in young U.S. children.