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A 22-year-old male asked:

Elisa p24 antigen 1.56(s/co) positive, antibody negative@25 days after exposure. rna pcr tnd(target not detected) @25days. elisa p24 ag 0.92(s/co) (gray zone)@27 days. roche eclia hiv ag/ab combo test negative @30 and 35 days. am i infected or not?

1 doctor answer • 2 doctors weighed in
Dr. Hunter Handsfield
Dr. Hunter Handsfieldanswered
Infectious Disease 55 years experience
Almost certainly you had a false-positive intial p24 antigen test, which later was negative, as shown by the negative AgAb tests at 30 and 35 days. You do not have HIV. However, it can take up to 45 days for AgAb tests to become positive. Have another AgAb test 45+ days after exposure.
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Reviewed Dec 23, 2022
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Dr. Frank Kuitems
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Last updated Dec 24, 2022

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Antibody›Human immunodeficiency virus›HIV test

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