Epidemiology of moderate-to-severe respiratory syncytial virus infections in children in subtropical Okinawa, Japan: a 4-year retrospective study

This study provides a comprehensive region-wide assessment of moderate-to-severe pediatric RSV infections in a subtropical setting in Japan. Despite not including data on the use of palivizumab, nirsevimab, or maternal vaccination, the findings provide essential baseline data to guide the implementation of new preventive strategies tailored to local epidemiology.