EIA Antibody Agar Gel Immunodiffusion (AGID):
180 tests; serum samples; 24-hour assay read time; bright, clean lines for easy reading; virtually no nonspecific lines, leading to high specificity
EIA Antibody cELISA:
92 tests, serum samples, competitive ELISA format, 45-minute assay time, visual test interpretation with optional spectrophotometric results