Lab method
ELISA
Antigen-antibody assay concept
ee-LYE-zuh
High-yield clue
Think antigen-antibody binding plus a readable signal.
Overview
An immunoassay concept used to detect antigens or antibodies by signal linked to antigen-antibody binding.
Classification
- Immunoassay
- Serology concept
Lab & identification clues
- Plate wells
- Enzyme-linked signal
- Color-change vocabulary
Associations
- Serology
- Screening concepts
- Public-health testing vocabulary
Commonly confused with
- PCR
- Western blot
- Rapid antigen test
Your notes
Original concept summary for coursework. Sources checked: OpenStax Microbiology 2e and NCBI Bookshelf Medical Microbiology; reviewed 2026-06. Describes vocabulary and interpretation concepts only; not a lab protocol and not for handling specimens or identifying patient isolates.