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RNA Negative Absence Of Antibodies

Here's a taste of what has to offer on this topic:
Ask the Experts

HCV RNA Result

Dr. McGovern,I had a potential HCV exposure and got a negative HepC antibody result 10.5 weeks post-exposure, and a negative HCV RNA 12 weeks after exposure. Am I HCV negative? Conclusively?
Barbara McGovern, M.D.

Response from Barbara McGovern, M.D.

Tufts University School of Medicine six months. However, in patients who have also had RNA testing, the diagnosis can be made much earlier. In your case, the absence of any detectable viremia at 12 weeks is consistent with no infection. I would not test further. Read more »

Adopting Child with initial positive then negative tests

We are considering adopting a child with the following results: 02/04 born;04/04 negative PCR... Read more »

I want to donate blood!!!

Hello Dr. McGovern, I would like to become a blood doner. I think it is an... Read more »
New York State Department of Health AIDS Institute

Diagnostic, Monitoring and Resistance Laboratory Tests for HIV

...antibodies to HIV-1 and HIV-2. Three advantages to these assays are as follows: Collection of the sample is noninvasive The absence of needles increases the safety for the personnel collecting the sample Disposal of potentially infectious... Read more »
U.S. National Institute of Allergy and Infectious Diseases

The Evidence That HIV Causes AIDS workers in the United States with documented, occupationally acquired HIV infection, of whom 25 have developed AIDS in the absence of other risk factors. The development of AIDS following known HIV seroconversion also has been repeatedly... Read more »
The Body PRO

Can HIV be Eradicated?: Report on Dr. David Ho's Presentation

...blunting if not lack of production of gp120 and p24 antibodies as compared to untreated patients. In 7 cases there was also an absence of fresh unstimulated cytotoxic T lymphocyte (CTL) response in their peripheral blood mononuclear cells. Ho... Read more »
U.S. Centers for Disease Control and Prevention

Guidelines for Prevention and Treatment of Opportunistic Infections in HIV-Infected Adults and Adolescents

...54,56,69-72 . The second group includes OIs that occur >12 weeks after initiation of ART among patients with suppressed HIV ribonucleic acid (RNA) levels and sustained CD4 + counts >200 cells/ ยต L 73,74 . Determining whether these represent a... Read more »
Connect With Others

testing statistics needed

Posted by Anonymous, 1 Reply
...Can anyone help me? I have tested negative at 60 days with an ELISA. Also negative on DNA and RNA VL at 52 days post exposure. What are the odds if anyone knows Read more »

Accuracy of PCR

Posted by Anonymous, 2 Replies a 6 month ELISA (and certainly a 3 month ELISA). A thought occurred to it possible that one could develop enough antibodies to make the PCR undetectable at 7.5 weeks? The Quest test says it measures down to 10 copies. Do antibodies... Read more »


Posted by Anonymous
...presents with fever of unknown cause. The diagnosis is based on a positive HIV-1 RNA level (more than 50,000 copies per mL) in the absence of a positive enzyme-linked immunosorbent antibody assay (ELISA) and confirmatory Western blot antibody... Read more »

Test results to HIV and HCV

Posted by Anonymous, 2 Replies
...concentration of p24 antigen was 250 ng per liter, the HIV Western blot assay had no positive band, and an enzyme immunoassay for antibodies to HIV was negative. The test for HIV antibodies first became positive on day 31, when the HIV Western... Read more »