Irregular seasonality of respiratory syncytial virus infection persists in 2023 in Osaka, Japan.

ABSTRACT:

Objectives

Owing to the nonpharmaceutical interventions against COVID-19, respiratory syncytial virus (RSV) infection was nearly absent in 2020. An unusual epidemic size and irregular seasonal pattern were observed worldwide in 2021. In Osaka, Japan, after disrupting the regular pattern of RSV infection dynamics (before the COVID-19 pandemic, RSV epidemics typically start in summer and peak around fall), the epidemic size of RSV infection returned to normal in 2022. However, the epidemic onset timing remained irregular in 2022 and 2023. This study investigated whether the onset of the RSV infection epidemic in 2023 was predictable using previous seasonal patterns.

Methods

The weekly number of RSV infection cases obtained from sentinel pediatric sites between 2007 and the 15t

SUBMITTER: Miyama T 

PROVIDER: S-EPMC11462021 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature