Abstract
Respiratory syncytial virus (RSV) is a major cause of lower respiratory tract infections in people of all ages and is the leading cause of hospitalization among infants in the United States. The year 2023 was exciting for RSV prevention. The Food and Drug Administration (FDA) approved 3 new tools for preventing severe lower respiratory tract RSV infections in infants, young children, and elderly persons. In May 2023, the FDA approved 2 vaccines, RSVpreF3 (Arexvy™, GSK) and RSVpreF (Abrysvo™, Pfizer), for adults ages 60 years or older to be given as a single-dose intramuscular injection. July 2023 brought the approval of the first long-acting monoclonal antibody nirsevimab (Beyfortus™, Sanofi and AstraZeneca) for the prevention of RSV disease in infants and young children. Then in August, the FDA approved a vaccine (Abrysvo™, Pfizer) to be given to pregnant women to protect their newborns through passive immunity. This article focuses on nirsevemab that has been recommended by the Advisory Committee on Immunization Practices (ACIP) and American Academy of Pediatrics (AAP) to be administered for all infants <8 months of age and for children 8 to 19 months of age who are at increased risk for severe RSV disease.
Published Version
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