COVID-19 Human IgA PharmaGenie ELISA Kit (NP/S1 RBD) (SBRS1727)

Assay Genie's COVID-19 Human IgA PharmaGenie ELISA Kit enables class-specific antibody profiling for SARS-CoV-2 serology studies. By coating a single microplate with antigens from the Nucleocapsid Protein and the Spike S1 Receptor Binding Domain, the assay helps researchers distinguish natural infection from vaccine-induced responses and track mucosal immunity patterns. IgA is the principal antibody class in mucosal secretions, so quantifying antigen-specific IgA offers insight into recent exposure, breakthrough infections following vaccination, and the durability of humoral protection.

The indirect ELISA workflow uses pre-coated wells, a horseradish peroxidase-conjugated anti-human IgA secondary antibody, and a substrate that yields a measurable signal proportional to bound immunoglobulin. Each kit includes the coated plate, ready-to-use detection reagents, calibrators, wash buffer, and protocol documentation for one microplate run, and it is shipped refrigerated to preserve reagent activity. The product is intended for research use only and supports in vitro investigations, epidemiological seroprevalence work, and academic studies of the adaptive immune response to SARS-CoV-2.