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Reliability test combo later around 40 days from the exposure

I have performed a test combo for the search of the antibodies hiv and of the antigen p24 (test of 4 generation) later around 40 days after an experience of occasional sex with a prostitute. The result has been negative. I can be sure not to have contracted hiv I have me I must repeat the test after 90 days. Thanks for the answer!
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Teak,  the attached study indicates that HIV can survive for 7 days outside the body, which means that it may also remain infectious if it is introduced into the body.   This could happen if a CSW re-uses condoms on her unwitting clients.  

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564025/
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26 days after the suspected relationship, HIV 1 / 2 after 40 days had a negative HIV antibody test was a duo p24 +. Are there any other test reliability and the need
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I thank you for your availability and for the accuracy of the answer. I think that what you say is very important because a person must not wait for pù 90 days to be calm of his result. Thanks! All the best,
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You didn't have a risk of contracting HIV from oral sex and non penetrative vaginal sex.

HIV is unable to reproduce outside its living host (unlike many bacteria or fungi, which may do so under suitable conditions), except under laboratory conditions; therefore, it does not spread or maintain infectiousness outside its host.
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You were already told that the combo test result was excellent and highly unlikely to change at 3 months.
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excuse me but me I wanted to know only the period of reliability of the test combo because there is whoever it says that is not more valid after four weeks and there is who speaks of 4 or more weeks. also seem me a legitimate curiosity to give correct information to other people. if my question is not good I won't ask questions anymore. thank you.
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I have had active oral sex with she vaginal liquid and beginning of penetration in she vagina and then touched with mine crawled with my punishments his/her vagina and later I have applied the condom.
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If the OP did infact have a genuine risk then he still requires testing at 3 months because no test is 100% conclusive until then.
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You didn't told us your exposure. Whether it was protected or unprotected sex?
But either way, you can rely on your test. Your HIV Combo = HIV 1 and 2 antibodies and p24 antigen test is accurate and you are HIV negative. There is no need for further testing.

Cheers
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Thats an excellent result,but you still require testing at 3 months to obtain a 100% conclusive result.Expect another negative.
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