Dr. Davie Wong
HIV/AIDS specialist
The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.
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Patient's Query
Hello doctor,
I had sex with a sex worker. I took PEP (Post - exposure Prophylaxis) medicine for the first three days after exposure. After 39 days, I took a combo test, and after 58 days, a fourth generation HIV duo ultra antibody and antigen test. The results were negative. After 87 days, my antibody test was negative, and after 105 days, HIV 1 and 2 CMIA (Chemiluminescent Microparticle Immuno Assay) combo antigen and antibody test were negative. Are all the test results 100 % conclusive?
Kindly advise.
Hello, Welcome to icliniq.com.
I understand your concern. A fourth-generation HIV (human immunodeficiency virus) antibody test can detect HIV infection 15 to 20 days after exposure. If your test remains negative, 105 days after exposure, you can be confident that you do not have HIV. The accuracy of fourth-generation HIV tests is very close to 100%.
I hope this helps.
Thank you.
Patient's Query
Hello doctor,
Thank you for the answer.
Can using PEP medication for three to four days affect the duration?
Hello,
Welcome back to icliniq.com.
Taking PEP (post-exposure prophylaxis) medicine for three days will not affect the results. However, if you had contracted HIV, your antibody test would have come positive by now.
I hope this helps.
Take care.
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HIV/AIDS specialist
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