Answer
For infants entering their first RSV season, nirsevimab (Beyfortus) should be administered from birth if born during the RSV season, or ideally before the RSV season if born outside it.
Sources for this answer
- Beyfortus 50 mg solution for injection in pre filled syringeSANOFI · emc · SmPC §4.2 Posology and method of administration · Version 3Document updated
Sources checked