Hi doctor,Before 19 days, I had protected sex with a part-time sex worker and freaked out after the incident. I am worried about any possible infection that could happen. I did a p24 antigen test. The results are p24 antigen on fourth day-0.125, sixth day-0.254, ninth day-0.271, twelfth day-0.274, fifteenth day-0.396, nineteenth day-0.540.I am upset about the increase in count. Please advise. I have done PCR RNA after 15 days for HIV 1, and it is not of detected status and HIV 2 ELISA on the nineteenth day which was also nonreactive. Kindly advise.
Hi. Yes, the titer of p24 is increased, but still, it is below the threshold value of being positive. Also, your PCR RNA done after two weeks is also negative. Your HIV 1 and HIV 2 tests done on the nineteenth day is also negative. It indicates that you do not have any infection, but it is too early to say with certainty. So you need to repeat the fourth generation HIV test after 12 weeks of possible exposure. So till that you need not worry excessively as the investigation done till to date indicates that most probably you do not have an infection. For more information consult a sexologist online  Take care.