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Nirsevimab Dramatically Reduces RSV Hospitalizations in Infants: 2024–2025 Cohort Study

A recent retrospective cohort study examined the effectiveness of nirsevimab in preventing respiratory syncytial virus (RSV) hospitalizations among infants during the 2024–2025 RSV season. Using anonymized data from the Epic Systems Cosmos dataset, researchers analyzed outcomes for 409,723 infants born between February 2024 and January 2025. After exclusions, nearly half (47.5%) of the infants received nirsevimab. The study found that only 0.4% …
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healtheconomics.com broke the news in on Tuesday, October 7, 2025.
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