[Question #453] confused about my HIV test
105 months ago
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Edward W. Hook M.D.
105 months ago
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Welcome to our Forum. Irrespective of the type of exposure, a negative 4th generation test for HIV at 4 weeks/28 days provides virtually absolute assurance that you did not acquire HIV. The ONLY exception to this is for persons who have taken anti-HIV medications in efforts to prevent an infection (i.e. PEP). In all cases, the "antigen" referred to in the description is a p24 antigen. No need to seek further testing beyond the time of a 4 week test.
I hope this comment is helpful. EWH
105 months ago
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Edward W. Hook M.D.
105 months ago
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105 months ago
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105 months ago
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Edward W. Hook M.D.
105 months ago
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As indicated in the quote you include, these events are TRANSIENT. They are theoretically possible and when they occur, they last only a few days. You indicate you have been tested three times- in this case your negative tests would not indicate a "2nd window" and should be believed. Further, please understand because, as a quasi-political organization, agencies like the CDC feel they cannot "afford" to be wrong and therefore tend to be highly conservative and list virtually every possible exception in an effort to not be wrong. None of this in any way changes my assessment of your situation or advice to you.
All 4th generation tests must perform to the same standard to become FDA approved, irrespective of the manufacturer. ALL are conclusive at 4 weeks,
This is my third reply to your questions. As per Forum policy, later today this thread will be closed. Take care. EWH
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