SARS-CoV-2COVID-19 testingREVERSE transcriptase polymerase chain reactionIMMUNOASSAYWESTERN immunoblottingBackground: The aim of this study was to evaluate the clinical performance of a newly developed automated immunoassay HISCL SARS-CoV-2 Antigen assay kit designed to detect the nucleocapsid (N) ...