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What does hiv 1+2 test (elisa) mean?

Enzyme-linked immunosorbent assay: 197 1 year, Swedish scholars Engvail and Perlmann, Dutch scholars Van Weerman and Schuurs reported that immunization technology has developed into a solid-phase immunoassay method for detecting trace substances in body fluids, namely enzyme-linked immunosorbent assay (ELISA). ELISA has become a frontier subject in analytical chemistry. It is a special reagent analysis method and a new immunoassay technology developed on the basis of immunoenzyme technology.