Posted by: | 2018/01/16


Pep and testing

Hi Dr, I took pep after unprotected exposure with a woman for 30 days then i took a PCR test and a duo ag/ab after 8 weeks post pep ( 12 weeks post exposure ) and both came back negative . Do i need further tests ? Why in europe they say that we need to wait 4 months post exposure to be sure 100% and american site say up to 6 months to be sure ?? Which is the truth ?? I am asking beacuse i still have headaches , muscle , joints and bones aches since the finishing of the pep but no fever and no swollen gland , can this be symptoms of hiv infection or due to stress ?? Please Dr i need your reply.

Expert's Reply


HIV/Aids expert
- 2018/01/23

The tests that we use to screen for HIV have a window period of 4 - 6 weeks. This means that within 4 - 6 weeks of infection the test will come back positive. The cut-off in South Africa is 12 weeks. If you are negative 12 weeks post-exposure we are satisfied that you are HIV negative

I do not think that your symptoms are related to HIV infection. Do go and see your doctor or nurse clinician

The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.

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