The Elisa Test is a medical diagnostic test used to detect the presence of antibodies or antigens in blood. Some synonyms for this test include enzyme immunoassay, enzyme linked immunosorbent assay, and EIA. Other common terms for the Elisa Test include serological test, blood test, and immune assay. These tests are commonly used to diagnose infectious diseases such as HIV, Hepatitis, and Lyme Disease. The Elisa Test is also used in research to detect specific proteins in biological samples. Regardless of the specific term used, the Elisa Test has become an important tool in modern medicine for diagnosing a wide range of medical conditions.