Influenza Resurgence after Relaxation of Public Health and Social Measures, Hong Kong, 2023
Weijia Xiong, Benjamin J. Cowling, Tim K. Tsang
Abstract
Soon after a mask mandate was relaxed (March 1, 2023), the first post-COVID-19 influenza season in Hong Kong lasted 12 weeks. After other preventive measures were accounted for, mask wearing was associated with an estimated 25% reduction in influenza transmission. Influenza resurgence probably resulted from relaxation of mask mandates and other measures.
Topics & Concepts
MandatePublic healthTransmission (telecommunications)Coronavirus disease 2019 (COVID-19)Environmental healthSeasonal influenzaInfluenza A virusSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Medicine2019-20 coronavirus outbreakVirologyDemographyPolitical scienceVirusInfectious disease (medical specialty)OutbreakInternal medicineNursingDiseaseSociologyElectrical engineeringLawEngineeringInfection Control and Ventilation