| Ag/Ab | Antigen/Antibody |
| AIDS | Acquired Immunodeficiency Syndrome |
| APHL | Association of Public Health Laboratories |
| CI | Confidence Interval |
| CLIA | Chemiluminescent Immunoassay |
| CDC | U.S. Centers for Disease Control and Prevention |
| ELISA | Enzyme-Linked Immunosorbent Assay |
| FDA | Food and Drug Administration |
| HIV | Human Immunodeficiency Virus |
| HIV-1 | Human Immunodeficiency Virus Type 1 |
| HIV-2 | Human Immunodeficiency Virus Type 2 |
| IND | Indeterminate |
| INNO-LIA™ | Line Immunoassay HIV I/II Score |
| LIA | Line Immunoassay |
| MC | Medical Commission |
| MOPH | Ministry of Public Health |
| NPV | Negative Predictive Value |
| OPA | Overall Percent Agreement |
| PCR | Polymerase Chain Reaction |
| PPA | Positive Percent Agreement |
| PPV | Positive Predictive Value |
| RDT | Rapid Diagnostic Test |
| WHO | World Health Organization |