A member asked:

4th gen combo test test accuracy?

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Dr. Hunter Handsfield answered

Specializes in Infectious Disease

This is properly named an HIV antigen-antibody test, or AgAb test. It is the standard, most commonly used HIV blood test. It accurately detects 100% of HIV infection when done 45 days or more after the last possible exposure. (By 3-4 weeks after exposure, it is positive in 95-98% of HIV infected persons.)

Answered 7/22/2023

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