Which method is considered the most sensitive for detecting antigens?

Show Answers

RadioimmunoassayEnzyme-linked immunosorbent assay (ELISA)Immunofluorescence techniquePassive hemagglutination test

Explanation

Radioimmunoassay (RIA) is recognized as the most sensitive technique for antigen detection compared to ELISA, immunofluorescence, and passive hemagglutination methods.