I had unprotected sex with my neighbour and tested for HIV antibody test at 35th day ,73 rd day ,113th day and 147th day .All were negative.but I have skin rashes on my back. I am from india.The test which i taken is HIV 1&2 ELISA. I think this is standard elisa test. Please guide me .Am scared.
Hi there, and thanks a lot for contacting the AIDS Vancouver Helpline for your HIV/AIDS related health information. It seems like you might be scared about the possibility of HIV transmitting, and the accuracy of some tests you've had since then. We're happy to answer your questions for you.

Unprotected sex is indeed considered a high risk activity, meaning that of the transmissions that have occurred, most have occurred in activities such as these. So it's great you were proactive and decided to go for testing.

Here is a bit more information on the ELISA test (the test you've had):

You'll see in the chart that tests using this method are considered conclusive 3 months (or 90 days) post exposure. So if you haven't had any potential exposures during this period, the tests you've had at day 113 and day 147 are considered conclusive, meaning the results should be taken as accurate.

As for your skin rash, we at AIDS Vancouver are not healthcare providers, so cannot comment on any symptoms you may be experiencing. That said, the symptoms of an HIV infection are very similar to the symptoms of many other common medical conditions. Testing is the only way to know if transmission occurred, which you've already undergone. We would encourage you to speak with a healthcare provider about your rash, however.

Thanks a lot for contacting the AIDS Vancouver Helpline with your question, we hope it has been answered fully.


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Test Name Method Window Period Conditions
Enzyme Immunoassay Antibody (EIA) 3rd Generation (ELISA) Blood test that looks for antibodies. Up to 95% of infections are detectable within 4-6 weeks post exposure. Most people develop detectable antibodies in 21-25 days. Most commonly available testing method. Conclusive at 3 months post exposure. |