P24 antigen clarification

[Alostsoulin]

I had an exposure on May 4th 2012, it was an unprotected receptive fellatio from a women of unknown HIV status, I did not had any vaginal or anal acts with her. My fear struck in when after the act she said she has some on the inner side of her lips and showed me a boil of a ball pin head size, which was not open (i confirmed it).

I did the following tests on 15th, 21st and 28th days after exposure and all the results came as negative
HIV I and II and P24 antigen - Negative
HIV-1 RT-PCR --> Target not determined (Min limit <40 copies /ml)

I also did a tri-dot 32rd day after exposure. Result was negative.

My Questions are

1: Does the P24 antigen tests for both HIV 1 and HIV 2?
2: Does the P24 antigen present in both the HIV 1 and 2, of so are they the same protein?
3. From the above tests, i m little relieved about HIV1 but still i m worried about HIV2. I live in south India.

Please advice...
Regards
A lost soul

[Alostsoulin]

Please provide your extensive knowledge for the above questions, since these answers will help to enlighten the community as well and also many confused souls like me.

Thanks all for the great job.
Regards
Alostsoulin.

[joggen]

Oral sex does not transmit HIV, period.