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HIV Transmission and Education >> Am I Infected?

Window Period
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Only Times When 3 Months is not Conclusive
      01/25/04 01:52 PM

3 month, 13 weeks, 90 days is considered conclusive with HIV testing. Wheather with Orasure, Oraquick, home Access or Blood test 13 weeks is consider conclusive. A 3rd Gen Elisa test is consider encouraging at 6 weeks, and the all clear by 10 weeks. 4th Gen Elisa, is an 3rd Generation ELISA test combined with a P24 test and is consider conclusive at 6 weeks. In a 4th Gen. test, If the Elisa test doesn't catch the antibodies - the P24 test will catch the actual virus. The 4th Gen test is used in Massachusetts and a few other places. But most offices use 3rd Generation Test. Home Access is 1st Gen. test, and is conclusive at 13 weeks. The Generation just means the level of sensitivity to detect antibodies.

There are however instances when a person should test past 13 weeks:

1. IV drug users - Should test out to 6 months.(poss. 1 yr.)
2. Occupational exposures - a base line test, 6 weeks, 12 weeks, 6 months, and then a year.
3. High risk sex with a know POZ person. i.e. unprotected anal sex. Should test out to 6 months, but 13 wks should be conclusive for the most part.
4. If you have taken PEP. The window period starts after you finish taking the medicine. So you take PEP for 28 days, the the 13 weeks start on the 29th day. If you can't wait that long. A 28 day PCR test, combined with a 8 week ELISA should be conclusive after finishing PEP.

If anyone has anything to add please do.

Also if you are sexually active, even protected sex, you should test anually. (Once a year)

Different HIV test

ELISA test - the most widely used test. This test does not detect the HIV virus, it detects antibodies. That's why there is a window period. (13 weeks) Window period is the length of time a test takes to find DETECTABLE antibodies. If you test before 13 weeks, you still might be Poz, with undetectable antibodies. That is way a 6 weeks is encouraging and a 13 weeks is conclusive. If you don't believe the 13 weeks, believe the CDC when they say 95%.

PCR and P24 test - detects the actual HIV virus. This can be used as soon as 14 days after exposure but best if done 28 days. These test can detect the actual virus, and virus replication. While the PCR is more sensitive, the P24 is a cheaper test but can give false positive. (Remeber these test are done for diagnostic purposes) Any RESULTS must be confirmed with a ELISA, and if ELISA Positive, a Western Blot test.

Western Blot test (WB) - This is the test used to actually diagnose HIV. If you have a Reactive Elisa or Poz PCR or P24, the WB is used to confirm these results.

You are not officially considered HIV + until you have a Poz WB test. Some people have tested Poz on a antibody test and NEG on a WB test. This means you are HIV NEG. If you are WB INDETERMINATE, re-test in 3 - 6 weeks.

The reason ELISA test is more widely used becasue it is a cheaper test. And since the majority of people will test NEG, there is no need in wasting money on a WB.

HIV - 2

Hiv - 2 is mostly found in West Africa. The only people who should worry about HIV - 2 are those who had sexually contact with someone from that region, or a World Traveller. There are only 78 known cases of HIV - 2 in the US. HIV - 2 is becoming more of an issue in Europe though. most HIV test might catch HIV - 2, if you feel you are at risk for HIV - 2 ask your doc for a specific test.

Also one last thing. USE PROTECTION WHEN SEXUALLY ACTIVE. YOU NEVER REALLY KNOW ANYONE'S STATUS.

AND TO GUYS WHO SCREW THAI HOOKERS, PROSTITUTES, STRIPPERS, and OTHER MEN WHILE IN A MONAGYMOUS RELATIONSHIP. DON'T BE AN IDIOT USE PROTECTION.

THERE IS NOTHING WORSE THAN TELLING YOUR SIGNIFICANT OTHER THAT YOU CHEATED ON THEM AND POSSIBLY INFECTED THEM.

If I left out anything, Or gave wrong information. Please correct Me!!!!!

Have a good and sexually protected day.

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Subject Posted by Posted on
* Only Times When 3 Months is not Conclusive Window Period 01/25/04 01:52 PM
. * Re: Only Times When 3 Months is not Conclusive Anonymous   01/25/04 07:11 PM
. * Re: Only Times When 3 Months is not Conclusive Anonymous   01/26/04 12:37 PM

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