HIV I,II Abs, P24 Ag =0.39
hello there.
i had unprotected sexaual intercourse 19 days ago, yesterday I tested for HIV (HIV I,II Abs, P24 Ag ) it came back negative and = 0.39.my questoion is when The P24 antigen can be detectable ? i know that if i infected already antibodies can not detectable now , so please clarify this to me
Hello there and thank you for using AIDS Vancouver as your source of HIV/AIDS related information.
P24 protein can be detectable almost immediately after infection & is in highest concentrations for the first 2-3 weeks post possible exposure. This is because on average, a person begins to develop antibodies at 21-25 days post exposure. So, at 4-6 weeks, it is more likely to have detectable antibodies than P24. 18 days after a possible exposure, I would expect the P24 test to be extremely accurate and a good reflection of your status.
It is still recommended that everyone re-test at 3 months/12 weeks post possible exposure for conclusive results.
Hopefully you find the information helpful.
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Stay healthy and keep smiling
Yoshiko
AIDS Vancouver Helpline Volunteer
Direct; 604-696-4666 (M-F 9am-4pm)
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