Had an oral with CSW ( HIV status not known) 20 days ago. 7 days after had anal and vaginal unprotected with partner. 4 days after ( 11 from my CSW oral) both me and my partner fell sick with flu symptom. NO fever or rash. No real tiredness just a runny/blocked nose and little cough. Got tested Combo @ 14 days ( from first CSW oral) and got negative 0.259 COI.
Today my partner caught severe flu plus mild fever 37-37.5 ( 2 weeks of our unprotected anal and vaginal).
1- is it possible I caught infection and transmitted it to partner through anal and vaginal?
2- any value added from my combo reading in 2 weeks
3- I will do 3 weeks combo tomorrow and planning the 4th, what do you think
4- hypothetically, if there is an infections and then some symptoms it means in this scenario HIV shall be detectable in 2 weeks COMBO
Advise please
Hello and thanks for reaching out to the AIDS Vancouver Helpline.

It seems you are concerned that you night have contracted HIV from having oral sex with CSW and are not sure whether you should get another test after receiving negative results from the first test. We are glad to provide some information.

As you have not provided any details about your encounter with the CSW here are the risk levels attached to oral sex activity. Receiving oral sex is considered a Negligible Risk activity. This means that although this activity involves the exchange of body fluids, there has never been a confirmed report of HIV infection by this method. Giving oral sex is considered a Low Risk activity. This means that there have been a few reports of HIV infection through this activity.

With regards to further testing here is some information about the Combo test.

As shown above the results you got from the test done two weeks after the activity are an indicator but not conclusive as they only provide results from the antigen. You would need to be tested at 6 weeks to have both the antigen and antibody results which some specialists would regard as conclusive. However we recommend that you get tested 12 weeks after the activity for conclusive results. We do not use symptoms to determine the HIV status of an individual. Testing is the only way one can accurately determine their HIV status.

Aids Vancouver Helpline Online forum has postings that are related to your question that you can read for additional information. If you have further questions feel free to contact us again.

Thank you for contacting the AIDS Vancouver Helpline.

In health


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Test Name Method Window Period Conditions
4th Generation EIA Blood test that looks for antibodies AND p24 protein antigens. Commonly referred to as the "combination," "combo" or "DUO" test. P24 protein is detectable immediately after infection but only for the first few weeks. The antibody (ab) test has a window period of 4-12 weeks post exposure. This test is widely available in North America. Most HIV specialists consider this test to be conclusive at 6 weeks but official HIV testing guidelines still recommend re-testing at 12 weeks for conclusive results. Conclusive at 3 months post exposure. |