Respiratory virus shedding in exhaled breath and efficacy of face masks

  title={Respiratory virus shedding in exhaled breath and efficacy of face masks},
  author={Nancy H. L. Leung and Daniel K. W. Chu and Eunice Y. C. Shiu and Kwok-Hung Chan and James J. Mcdevitt and Benien J. P. Hau and Hui-ling Yen and Yuguo Li and Dennis Kai Ming Ip and J. S. Malik Peiris and Wing Hong Seto and G. Leung and Donald K. Milton and Benjamin John Cowling},
  journal={Nature Medicine},
We identified seasonal human coronaviruses, influenza viruses and rhinoviruses in exhaled breath and coughs of children and adults with acute respiratory illness. Surgical face masks significantly reduced detection of influenza virus RNA in respiratory droplets and coronavirus RNA in aerosols, with a trend toward reduced detection of coronavirus RNA in respiratory droplets. Our results indicate that surgical face masks could prevent transmission of human coronaviruses and influenza viruses from… 

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