Murphy, Gregory P., Catherine Garry, Susan Van Baarsel, Tina Coleman, Ben Shovlin, Ciara Fogarty, Conor Williams, et al. “COVID-19 Seroprevalence in Primary and Secondary Healthcare Workers (HCWs)”. International Journal of Infection Control 17, no. 1 (December 21, 2021). Accessed November 21, 2024. https://ijic.info/article/view/21784.