The COVID-19 & SARS-CoV S glycoprotein Antibody [CR3022], Human IgA1 from ProSci, Inc Monoclonal antibody to S. This antibody recognizes Virus antigen. The COVID-19 & SARS-CoV S glycoprotein Antibody [CR3022], Human IgA1 has been validated for the following applications: Binding, EIA, Immunoassay, X-Ray, Block/Neutralize/Inhibit, ELISA, Functional Assay, Immunofluorescence, and Other.