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Are HIV Duo Tests Reliable From Nine Weeks After Engaging In Unprotected Sexual Activity?

Posted on Tue, 26 Mar 2019

Question: hi doctor I had an exposure with a woman of unknown status. upon.y request she did a duo test hiv1/2 and/or P24 at 9 weeks following her previous sexual encounter and it came back negative. how reliable would you say it is?

Answered by Dr. Dr. Monika Dede (2 hours later)

Brief Answer:

Please don't worry!

Detailed Answer:

Hello,

Based on your history I think you shouldn't worry because having a negative result of HIV duo test after 9 weeks from exposure is very accurate.

So, there is absolutely no risk for you in this situation.

Hope I have answered your query. Let me know if I can assist you further.

Take care

Regards,
Dr Monika Dede, Infectious Diseases Specialist

Above answer was peer-reviewed by : Dr. Nagamani Ng

Follow up: Dr. Dr. Monika Dede (1 hour later)

my last duo test followingmyexposure with her is at 8.2 weeks and I did an antibody HIV 1 and 2 test at 10 weeks and they are both negative.

Answered by Dr. Dr. Monika Dede (3 hours later)

Brief Answer:

There is no need for further HIV test.

Detailed Answer:

Hello,

Having negative results of HIV duo test after 10 weeks is a good news.

As I said above, there is no risk for you to get HIV from your partner(based on her data) and there is no need for further HIV test.

Hope I have answered your query. Let me know if I can assist you further.

Take care

Regards,
Dr Monika Dede, Infectious Diseases Specialist

Above answer was peer-reviewed by : Dr. Yogesh D

Follow up: Dr. Dr. Monika Dede (19 hours later)

what does the new guidelines say about testing? I heard there are new guidelines in the UK, Sweden and Canada

Answered by Dr. Dr. Monika Dede (21 hours later)

Brief Answer:

There is no need for other tests.

Detailed Answer:

Hello,

According to the guideline in your situation having an HIV duo test after 4_8 weeks of exposure is very accurate and there is no need for other tests.

But, if a person has unprotected intercourse with a partner with unknown sexual history, according to the guideline is needed to do an HIV 2 test after 3 months of exposure as a conclusive test.

Hope I have answered your query.

Take care

Regards,
Dr Monika Dede, Infectious Diseases Specialist

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Above answer was peer-reviewed by : Dr. Kampana