INTRODUCTION. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, China in December 2019 and caused a dramatic pandemic ().Anti-SARS-CoV-2 antibodies are essential tools for managing and understanding how coronavirus disease 2019 (COVID-19) spreads through populations and for measuring herd immunity and individual immune response. Between April 18 and June 17, 2020, 330 HCWs from five Madinah region-affiliated hospitals underwent a seroprevalence screening for anti-SARS-CoV-2 antibodies (immunoglobulin [Ig]M/IgA and IgG) using indirect ELISA testing. Result. Among the 330 samples, 80 (24.24%) were positive for SARS-CoV-2 IgM/IgA and/or IgG antibodies. Tes antibodi kualitatif dapat dilakukan untuk mengetahui reaksi antibodi tubuh terhadap COVID-19. Tes ini bisa digunakan sebagai screening atau pemeriksaan awal untuk mengetahui apakah seseorang terinfeksi virus Corona atau tidak, misalnya rapid test antibodi untuk COVID-19. Sementara itu, tes antibodi kuantitatif mampu mendeteksi jumlah An ideal therapeutic anti-SARS-CoV-2 antibody would resist viral escape1–3, have activity against diverse sarbecoviruses4–7, and be highly protective through viral neutralization8–11 and .

anti sars cov 2 igg kuantitatif