In the most simple form of an elisa, antigens from the sample to be tested are attached to a surface. Learn about elisas (enzyme linked immunosorbent assays) and the various types of elisa including direct, indirect, sandwich and competitive elisas. Elisa is a laboratory technique that detects certain antibodies, antigens and other substances in your blood, pee or other bodily fluid
La 'pornstar' Elisa Sanches se pasa a árbitra: "No sé si me respetarán"
Laboratory scientists use this technique for several medical tests — from diagnosing infections to confirming pregnancy.