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Hello thank you very much for taking time out of your busy schedule to write me. I've two questions. 1) HIV AG/AB test at 3 months, accuracy does it include HIV 2 as well. On my test result it says, "This test is designed to detect the p24 antigen (presence of virus), antibodies to HIV-1 groups M and O, and antibodies to HIV-2". 2) My exposure was on August 21.2013 and I took this HIV test on November 21.2013. Did I take the test at the recommended time? Thanks


In BC, the HIV tests we use are accurate after 3 months. These are antibody and P24 tests. Your test was done at the recommended time (3 months) so you do not need to repeat it for the contact you had in August.

An exception is if you took Pep (post exposure prophylaxis). These are drugs taken for one month after a sexual contact to prevent HIV. In that case, we recommend you get tested again at 6 months.

Please leave a comment to let us know if that answers your question or if you need more information.

Health Nurse

For other readers, please feel free to leave a comment, or let us know if this was helpful.

This answer was posted on February 3, 2014

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Community comments

Icecold says:

Thank you very much for your response. Now the 2nd part of my question is that the 3 months recommended time frame does it apply for HIV 2?
I've heard that HIV 2 takes more time to show up in my system than HIV 1 and it has different symptoms/signs than HIV 1?

Also I've noticed a dark/brown spot on my cheek, underneath my cheekbone a dark/brown spot on my right cheek and a dark line going towards my eye corner. Could do this be a sign of HIV 1 or 2?

Thank you very much for helping me thru these difficult times, I greatly appreciate your help and guidance.

Health Nurse says:

With the HIV tests we use in BC Canada we have the same 3 month window period for HIV 1 and 2.

What you describe does not sound like a sign of HIV especially with a negative test result at 3 months, but it is not possible for us to diagnose conditions over the internet. If you are concerned about these spots I would recommend showing them to your doctor.


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