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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can HIV Infection Occur With Unprotected Homo Sex?

Hi, I had a one off sexual experience with a man, I am also a man, and am now worried about HIV as no protection was used, penitritive sex was litter ally only for 10 seconds, I've now got ulcers in my throat, although this is nothing massively new, should I be worried?? Thanks
posted on Fri, 14 Mar 2014
Twitter Wed, 21 May 2014 Answered on
Twitter Thu, 22 May 2014 Last reviewed on
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General & Family Physician,  's  Response
Hello!
I had gone through your query and understand your concern.
It is known that the chance of getting infected during an unprotected anal sex is very high (higher than during vaginal sex).
It is necessary you get tested for HIV infection.
Most HIV tests are antibody tests that measure the antibodies against HIV.It take some time for the immune system to produce enough antibodies for the antibody test to detect.This time is called window period and can last up to 3-6 months.
So if you do this test you can do it after 1 month of possible HIV exposure and if the result is negative you have to repeat it after 3 months and again after 6 months.If after 6 months the test result negative then you are not infected.(so HIV negative).

Another test is PCR test(Polymerase chain reaction test) is done to test the actual virus.This test is used for testing the viral load of HIV-positive people.It is done 2-3 weeks after infection.
This test can give a conclusive result much sooner than antibody test but it is expensive.

I suggest to get tested right away.

Hope my answer has helped.
Take care.
Dr.Rovena
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Can HIV Infection Occur With Unprotected Homo Sex?

Hello! I had gone through your query and understand your concern. It is known that the chance of getting infected during an unprotected anal sex is very high (higher than during vaginal sex). It is necessary you get tested for HIV infection. Most HIV tests are antibody tests that measure the antibodies against HIV.It take some time for the immune system to produce enough antibodies for the antibody test to detect.This time is called window period and can last up to 3-6 months. So if you do this test you can do it after 1 month of possible HIV exposure and if the result is negative you have to repeat it after 3 months and again after 6 months.If after 6 months the test result negative then you are not infected.(so HIV negative). Another test is PCR test(Polymerase chain reaction test) is done to test the actual virus.This test is used for testing the viral load of HIV-positive people.It is done 2-3 weeks after infection. This test can give a conclusive result much sooner than antibody test but it is expensive. I suggest to get tested right away. Hope my answer has helped. Take care. Dr.Rovena