Impact of the first nirsevimab immunization campaign on infant RSV-related emergency department visits and hospitalizations in Québec, Canada.
OBJECTIVES During the 2024-2025 respiratory syncytial virus (RSV) season, a universal nirsevimab infant immunization program was implemented in the province of Québec. We evaluated its population-level impact on RSV-related emergency department (ED) visits and hospitalizations in 0-5-month-old infants, using both activ...