The First Randomized, Controlled Clinical Trial of Mask Use in Households to Prevent Respiratory Virus Transmission

摘要

Background: Observational epidemiologic data suggest that transmission of viral respiratory infection was significantly reduced during the SARS epidemic with the use of face masks as well as other infection control measures. However, there are no prospective randomised control trials on face masks in prevention of viral respiratory infections Aims: To determine the efficacy of surgical masks and P2 masks in households on the interruption of transmission of respiratory viruses.