An HIV Test allows you to check for HIV, the sexually transmitted viral infection that left untreated will progress to acquired immunodeficiency syndrome (AIDS). People with HIV may not have signs and symptoms. If you’re sexually active and have unprotected sex, it’s important to screen for sexually transmitted diseases so you can stay informed about your sexual health. Testing is the only way to know for sure if you have a sexually transmitted infection. The HIV Test detects the presence of both HIV antibodies (HIV-1 and HIV-2) and HIV antigens.