Respiratory Viral Infection Patterns in Hospitalised Children Before and After COVID-19 in Hong Kong.

Unlabelled: The study highlights the significant changes in respiratory virus epidemiology following the lifting of COVID-19 restrictions.

Method: In this single-centre retrospective study, the virological readouts of adenovirus (AdV), influenza virus A (IAV), influenza virus B (IBV), parainfluenza viruses (PIV) 1, 2, 3, 4, respiratory syncytial virus (RSV), and coupled enterovirus and rhinovirus (EV/RV) were extracted from the respiratory specimens of paediatric patients in Hong Kong from January 2015 to February 2024. The subjects were stratified into five age groups.

Suppression of influenza virus infection by rhinovirus interference - at the population, individual and cellular levels.

Background: Influenza virus (IV) and the rhinovirus (RV) are the two most common circulating respiratory viruses circulating. Natural viral interference has been suggested between them. The effect of such at the population level has been described in temperate region, while its effect at the individual and cellular levels warrants further validation.