 This study compares the results obtained from five different anti-SARS-CoV-2 commercial assays, maglumic-hemilluminescent immunoassay, uroamin enzyme-linked immunosorbent assay, and five lateral-flow immunoassays, in 52 samples from patients and healthy volunteers. The study found high overall concordance between the comparative CLIA method and both ELISA and different LFIAs for IgG in IgM antibodies, with agreement ranging from 92.3 to 98.0 percent for IgG in 90.0 to 96.1 percent for IgM, depending on the kit. The concordance between CLIA and ELISA was 92.3 percent for IgG and 75 percent for IgA, compared to the maglumic-LIA IgM. These results suggest that LFIAs could be used in some settings where automated assays are not available, but with some limitations considered. This article was authored by Jakub Swadsba, Maciej Bidnarczyk, Tomasz Enisak, and others. We are article.tv, links in the description below.