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Diagnostics tests for HIV infection.
| Type of test | Detection of DNA/RNA | Detection of antigen | Detection of antibody |
|---|---|---|---|
| PCR or viral load | – | – | |
| P24 test | – | – | |
| 4th generation antigen/antibody (Ag/Ab) tests (p24+ ELISA, ELI, MEIA/ELFA/ECLIA): includes Architect, Duo, Combo/Combi, etc. | – | – | |
| 1st/2nd/3rd generation antigen only tests (ELISA, ELI, MEIA/ELFA/ECLIA) | – | – | |
| Rapid tests: finger prick and oral swab test are antibody only | – | – | |
| Western blot tests look for antibodies to specific HIV proteins | – | – |
