A 26-year-old male asked:
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cmia 4th gen antibody screening test (not antigen) for hiv 1 & 2 @50 days is 0.15 non reactive.is antibody screening without antigen accurate @7thweek?

1 doctor answer
Dr. Hunter Handsfield
52 years experience Infectious Disease
Conclusive at 6+ wk: Official advice by many agencies is that stand-alone HIV antibody tests are not conclusive until 3 months. However, with the modern tests in current use, including the test you had, the results actually are conclusive any time 6 or more weeks after exposure. Feel free to have another test at 3 months if another negative result will help you get beyond your fears. But it really isn't necessary.
Answered on Oct 18, 2018
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