What is HIV duo test or HIV combo test?

HIV. The hiv(1/2) abbott architect combo ag/ab test is most commonly referred to as a 4th generation (or duo or combo) test. It looks for antibody and p24 antigen. According to many health care professionals, this test is actually conclusive at 6 weeks.
HIV testing. It is a combination of the routine HIV antibody test combined with a specific protein antigen known as p29. This is thought to be nearly 95% accurate by six to twelve weeks.