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Hiv Antibody Test At Week 8

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Ask the Experts

what does "average is 25 days" mean?

Dear Dr HorwathWhen I call the CDC about hiv testing, they tell me that antibodies to HIV show up on the rapid test between 2 and 8 weeks, with "the average being 25 days". What exactly does this mean? I take it to mean that 50% of all HIV +...
Ewald Horwath, M.D.

Response from Ewald Horwath, M.D.

University of Miami School of Medicine
In statistical terms, the CDC is saying that the "mean" time between infection and a positive antibody test is 25 days. For example, if you test 100 people, you would add up all the results (total number of days for all subjects) and then divide by... Read more »

I'd really really appreciate an answer to this! (from Nigeria, will donate gladly)

Hello Dr Bob,I hope I get an answer to this question, because you seem to be one of the only people... Read more »

help me

I want to know if your pregnant does that increase the risk of a false negative? I was tested eight... Read more »
Articles
AIDS InfoNet

Viral Load Tests

...(antibody) test, which can be "negative" for 2 to 6 months after HIV infection. (See Fact Sheet 102 for more information on HIV antibody testing.) For prognosis , viral load can help predict how long someone will stay healthy. The higher the... Read more »
New York State Department of Health AIDS Institute

Diagnostic, Monitoring and Resistance Laboratory Tests for HIV

...recommended for establishing the diagnosis of infection in infants born to HIV-1-infected mothers. ( AI ) Clinicians should use an HIV antibody test with confirmation by Western blot or indirect immunofluorescence assay to establish diagnosis... Read more »
Canadian AIDS Treatment Information Exchange

The Stages of HIV Infection

...of virus in the blood (the viral load ). As the immune system learns to recognize and fight HIV, B cells start to make the HIV antibodies. When an HIV test is positive, that means that HIV antibodies have been found in the blood sample. ... Read more »
The Well Project

Understanding the Immune System

...cells don't go overboard, and relax once their job is done.) Both killer T cells and suppressor T cells are also known as CD8 cells. Natural Killer Cells Natural killer, or NK, cells also engulf and destroy infected cells and abnormal cancerous... Read more »
Connect With Others

4th Generation HIV Test

Posted by Trophy
...use in the United States.(1) A common feature of all varieties of ELISA is the use of enzyme conjugates that bind to specific HIV antibody, and substrates/chromogens that produce color in a reaction catalyzed by the bound enzyme conjugate. The... Read more »

Negative PCR DNA at 8 weeks

Posted by sunkyst, 2 Replies
...I just got the results of a PCR DNA test at 8 weeks and a negative HIV antibody test. Does this mean I don't have HIV or do I need more testing? Read more »

CDC window period have u are tested in the window

Posted by nomoreworry4me
...(sudden start) HIV infection can be >diagnosed by detecting HIV RNA in plasma from persons with a negative or >indeterminate HIV antibody test.>>According to the Revised Recommendations for HIV Testing of Adults, >Adolescents, and... Read more »

cdc dont they have to be honest

Posted by nomoreworry4me, 1 Reply
...(sudden start) HIV infection can be >diagnosed by detecting HIV RNA in plasma from persons with a negative or >indeterminate HIV antibody test.>>According to the Revised Recommendations for HIV Testing of Adults, >Adolescents, and... Read more »