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A member asked:

At what day are hiv ab/p24 ag screen conclusive?

A doctor has provided 1 answer

A negative result at 6 weeks or more after exposure is conclusive. A positive result is conclusive at any time.

Answered 1/31/2022

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Negative HIV Ab/p24 Ag screen at 40 days post unprotected sex. When should I plan to be retested?

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Possible exposure February 2, 2022. Tested April 4, 2022 came back negative with test HIV Ab/p24 Ag Screen. Been With a new partner having unprotected sex with partner for 8 months. If I was positive would it show up by now in my partner ?

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If HIV Ab/p24 Ag Screen is negative at day 46 of unprotected sex is it conclusive?
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