Airborne severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was detected in a coronavirus disease 19 (COVID-19) ward before activation of HEPA-air filtration but not during filter operation; SARS-CoV-2 was again detected following filter deactivation. Airborne SARS-CoV-2 was infrequently detected in a COVID-19 intensive care unit. Bioaerosol was also effectively filtered.
Keywords: COVID-19; SARS-CoV-2; air filtration; airborne pathogens; nosocomial infection.
© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America.