If someone had an HIV risk, (unprotected vaginal sex), what is the difference between CMIA and ELISA HIV antigen/antibody tests? I got tested after one year, and the test was CMIA. It was negative. However on this forum you all recommend an ELISA test. In my lab they only offered me a CMIA. I asked another laboratory and that also has a CMIA. Why do you recommend ELISA? Is that more accurate? Need some answers. Thank you.