A 18-year-old male asked:
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i had an hiv mixed ag/ab detection test 4 weeks after exposure. is this accurate ? it came back negative.

1 doctor answer
Dr. Hunter Handsfield
52 years experience Infectious Disease
Nearly conclusive: The Ag/Ab HIV tests detect almost all infections at 4 weeks, but on rare cases it can take 6 weeks. If you had an especially high risk exposure (e.g. unprotected sex with a known infected partner, anal sex with another male), have another test at 6 weeks. Otherwise no worries.
Answered on Feb 24, 2018
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