As stated in literature provided by EUROIMMUN, analytical specificity of the EUROIMMUN Anti-SARS-CoV-2 ELISA IgG antibody test is 98.5-99%. Due to the low homology of the SARS-CoV-2 S1 protein to the human coronavirus family (HCoV-229E, HCoV-NL63, HCoV-HKU1 or HCoV-OC43), cross-reactions to most of the human pathogenic representatives of this virus family are virtually excluded.