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RNA Reliable Absence Of Antibodies

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Ask the Experts

Viral Load Not Reliable after period of time???

My gynecologists tells me that the PCR RNA is not reliable. Now after having a negative antibody test at 16 wks and a undetectable (<400 copies) at 18 weeks, I am freaking out. He says that the viral load could very well be undetectable at 18 weeks...
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
...An undetectable viral load in the ABSENCE of antibodies after 4 months of exposure equals NO HIV infection. Read more »

HCV RNA Result

Dr. McGovern,I had a potential HCV exposure and got a negative HepC antibody result 10.5 weeks... Read more »

PCR RNA / Antibodies

Hi doc.Have read that a person can have PCR RNA test result < 50 copies / ml. and still be HIV... 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 »
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 »
Gay Men's Health Crisis

Stalking HIV Immune Dysregulation

...invader. The DTH test in current use measures the diameter of the induration to gauge the presence and extent of immune memory. The absence of an immune response, indicated by little or no induration, is referred to as anergy (a state of immune... Read more »
Connect With Others

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 »

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 »

elisa vs. pcr

Posted by Anonymous
...Whether extended follow-up is indicated in other circumstances (e.g., exposure to a source coinfected with HIV and HCV in the absence of HCV seroconversion or for exposed persons with a medical history suggesting an impaired ability to develop an... Read more »

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 about testing negative at 60 days and then being positive? ANy Read more »