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A member asked:
How unlikely is it for a 4th generation ag/ab hiv test to turn positive at 3 months after a negative result at 28 days?
A doctor has provided 1 answer
It's difficult to give you an accurate percentage (probably less than 5%) but it can happen by statistic data, although most of the time test should be positive by 28th day if infection is present. That is the reason why CDC guidelines indicate 90th day as the final timeline.
Answered 10/26/2022
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