Abstract In a test-negative design, we estimated within-season vaccine effectiveness (VE) of adjuvanted RSVPreF3 against laboratory-confirmed respiratory syncytial virus (RSV)-lower respiratory tract disease-associated hospitalizations in adults ≥60 years during Dec2023–Feb2025. Results showed 82.3% overall VE and 81.0–92.1% VE across subgroups, including those at increased risk of severe RSV disease.
Ku et al. (Fri,) studied this question.