Understanding transmission of severe acute respiratory syndrome coronavirus 2 informs infection prevention practices. Air sampling devices were placed in patient hospital rooms for consecutive collections with and without masks. With patient mask use, no virus was detected in the room. High viral load and fewer days from symptom onset were associated with viral particulate dispersion.
Keywords: COVID-19; infection prevention and hospital epidemiology; viral pneumonia.
© The Author(s) 2021. Published by Oxford University Press on behalf of Infectious Diseases Society of America.