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does it needs more than single exposure for hiv to transmitt

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hello doctor,
Why does it needs more than single exposure for hiv to transmitt..I have been involved in 3 exposures...2 of them in 2011...1 in 2016....Does this exposures involve any hiv patient..does it help in hiv transmission?? after the third exposure i have started experiencing symptoms like fever,swollen lymph node, sore in mouth..does these symptoms ae HIV symptoms....please help...


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replied March 23rd, 2017
HIV and AIDS Answer A60674
Welcome to e health forum.

The risk of having HIV via single sexual intercourse from a infected person is very low to result in confirmed infection. The chances of you having HIV, is possible only when you have had unprotected sexual intercourse, multiple times with a HIV infected individual. Hence you should be careful before having intercourse with any person with unknown HIV status or not trustworthy.

The risk of HIV transmission is present only if one of the partners is HIV positive . In such cases, the risk is higher if the infected person has very high viral titres and is not on any form of treatment.

HIV symptoms can be very confusing, and many other conditions can be mistaken for HIV. Hence HIV is not diagnosed based on signs or symptoms. It is diagnosed based on serology tests detecting HIV antigens and antibodies in the blood.

As per CDC recommendations, the only test used to screen for HIV is the ELISA test, which detects HIV antibodies in the body secretions and or blood. The 4th generation ELISA tests for HIV, detects both the HIV antibody as well as antigens of HIV virus. Hence the test that is very accurate and sensitive at detecting HIV infection. This test can be done after 4 weeks of exposure. If found negative, the test should repeat it every 4 weeks until 12 weeks.

In case the test results are negative after 12 weeks post exposure, then you can consider yourself as HIV free.

I hope this clears your doubts.


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