| HIV | the virus that causes acquired immune deficiency syndrome (AIDS) |
| AIDS | a syndrome caused by the human immunodeficiency virus (HIV) that renders immune cells ineffective, permitting opportunistic infections, malignancies, and neurologic diseases to develop; transmitted sexually or through contaminated blood |
| EIA | a test that screens for the presence of HIV antibodies in the blood |
| ELISA | blood test used to check for antibodies for HIV |
| Rapid tests | a blood test used to check for antibodies for HIV, results in 20 minutes, a blood test used to check for antibodies for HIV, results in 20 minutes |