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Does Prep extend hiv test window period?

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  • Does Prep extend hiv test window period?

    I did Alere 4th generation rapid test at 20days and still during Prep treatment, does the prep treatment will extend window period? The result is negative. Thanks doctor for answering my question.

  • #2
    Hi KkF,
    Thank you for your question.
    The Prep does not extend the window period. The idea of a Prep is similar to a vaccine, it works in offering protection against the disease.
    Here's an article that might be able to help you to understand how Prep works.

    Have a good day.


    • #3
      Hi KkF. This is a common question. But as far as we know, PEP and PrEP do not extend the window period. You may see this article for some clarification:
      HIV Post-Exposure Prophylaxis (PEP) has been established as a cornerstone of HIV prevention in the last 20 years. With newer, well-tolerated medications and better access to medical care, PEP has shown itself to be a safe and effective weapon in our arsenal against HIV infection.   Read: A Guide to HIV PrEP & HIV PEP