Unlike a rapid screening, the ELISA (Enzyme-Linked Immunosorbent Assay) is a highly sensitive and specific lab procedure performed by our experts. It detects the antibodies your body produces in response to HIV-1 and HIV-2. This is the essential, foundational test used for all conclusive diagnoses and is the standard for reliable, accurate results. A simple blood draw provides the clear, confidential, and definitive answer you need, which is the most powerful first step to managing your health.