ABSTRACT
742 Figure 1[Figure omitted. See PDF]ConclusionRSV epidemics are highly seasonal in England and last for 4 to 5 months. In the observed data, the winter peak varied little in timing or magnitude from 2014 to 2019. Recent RSV seasonality is expected to have been impacted by non-pharmaceutical interventions such as social distancing to reduce the transmission of COVID-19;however, the extent of any impact is currently uncertain.The longer season observed using predicted RSV admissions highlights the importance of examining RSV-associated admissions and is most likely due to the underdiagnosis of RSV. Identifying seasonal patterns is important for future planning for the healthcare system, impacts policy decisions and budget considerations for resource allocation, and assists in planning implementation strategies for future interventions preventing RSV.