Real-world data suggest nirsevimab reduces RSV test-positivity up to 12 months but not beyond — cautious interpretation required
Posted inInfectious Diseases news Pediatrics Respiratory

Real-world data suggest nirsevimab reduces RSV test-positivity up to 12 months but not beyond — cautious interpretation required

A multicentre retrospective TriNetX analysis found reduced odds of RSV test-positivity for infants receiving nirsevimab when last dose was within 6–11 months before testing; protection was strongest within 6 months and not evident beyond 12 months. Methodological limits temper causal inference.