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  2. Diagnosis of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_HIV/AIDS

    The accuracy of serologic testing has been verified by isolation and culture of HIV and by detection of HIV RNA by PCR, which are widely accepted "gold standards" in microbiology. [ 22 ] [ 23 ] While AIDS denialists focus on individual components of HIV testing, the combination of ELISA and western blot used for the diagnosis of HIV is ...

  3. Viral load monitoring for HIV - Wikipedia

    en.wikipedia.org/wiki/Viral_load_monitoring_for_HIV

    Viral load monitoring for HIV complements the CD4 count, which is another sort of test associated with monitoring HIV. Confusion about when to take a CD4 test is common. [1] The results of a viral load test help determine when a CD4 count is indicated. [1] CD4 cells are the primary target of HIV. A CD4 test quantifies Helper T cells and is ...

  4. CDC classification system for HIV infection - Wikipedia

    en.wikipedia.org/wiki/CDC_Classification_System...

    Wasting syndrome in the absence of a concurrent illness other than HIV infection that could explain the following findings: a) persistent weight loss more than 10% of baseline OR b) downward crossing of at least two of the following percentile lines on the weight-for-age chart (e.g., 95th, 75th, 50th, 25th, 5th) in a child at least 1 year of ...

  5. HIV - Wikipedia

    en.wikipedia.org/wiki/HIV

    Testing post-exposure is recommended immediately and then at six weeks, three months, and six months. [121] The latest recommendations of the US Centers for Disease Control and Prevention (CDC) show that HIV testing must start with an immunoassay combination test for HIV-1 and HIV-2 antibodies and p24 antigen. A negative result rules out HIV ...

  6. OraQuick - Wikipedia

    en.wikipedia.org/wiki/OraQuick

    In a clinical study, trained professionals compared HIV test results of OraQuick In-Home HIV Test with results from laboratory testing. The study was conducted on 4,999 participants and found OraQuick testing correctly generated a negative result 4,902 times out of the 4,903 times laboratory testing generated a negative result (99.9%). [ 10 ]

  7. Likelihood ratios in diagnostic testing - Wikipedia

    en.wikipedia.org/wiki/Likelihood_ratios_in...

    In fact, post-test probability, as estimated from the likelihood ratio and pre-test probability, is generally more accurate than if estimated from the positive predictive value of the test, if the tested individual has a different pre-test probability than what is the prevalence of that condition in the population.

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