Asymptomatic COVID in healthcare workers points to risk of silent spread A study released this week shows a 40% asymptomatic rate among healthcare workers (HCW) testing positive for SARS-CoV-2 at the time of screening—meaning they had no symptoms compatible with a COVID-19 diagnosis—raising concerns about silent transmission of SARS-CoV-2 in healthcare settings.
A systematic review of 97 studies presented online at the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Conference on Coronavirus Diseases and published in the American Journal of Epidemiology found that 10% of HCW were positive via polymerase chain reaction testing and 7% by antibody tests.