Among 880 healthcare workers with a positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) test, 264 (30.0%) infections were identified following receipt of at least 1 vaccine dose. Median SARS-CoV-2 cycle threshold values were highest among individuals receiving 2 vaccine doses, corresponding to lower viral shedding. Vaccination might lead to lower transmissibility of SARS-CoV-2.
Keywords: COVID-19; SARS-CoV-2; cycle threshold; vaccine; viral load.
© The Author(s) 2021. Published by Oxford University Press on behalf of Infectious Diseases Society of America.