Patient's Query
Hello doctor,
I am concerned regarding p24 antigen detection. I read in different articles that it is delectable for only two months, and later it disappears as antibodies are formed. So, I have the following concerns -
Kindly help.
Hello,
Welcome to icliniq.com.
The p24 antigen can be detected faster than antibodies. After two months, as one produces antibodies, the virus will be killed, and the p24 might not be detectable.
However, once the antibody level reduces in the body, the antigen can be detected as the viral load increases and the immune cells are reduced.
I hope this helps you.
Take care.
Patient's Query
Hello doctor,
Thank you for the reply.
I am worried about HIV-1 group N and group P. I got an HIV Combo test nine months after exposure, and the technician told me the machine could detect p24 antigen for all groups, including HIV-1 group N and group P.
So I wanted to confirm if p24 can be detected nine months after exposure if there is no treatment?
Kindly help.
Hello,
Welcome back to icliniq.com.
It depends on whether you have contracted the infection or not.
Yes, the HIV-combo test can detect the p24 antigen if it is present. So if it is negative, it means you are negative.
I hope this helps you.
Take care.
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Answered byDr. Arun Kaushik. R
Medically reviewed byiCliniq medical review team
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