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  2. Viral disease testing - Wikipedia

    en.wikipedia.org/wiki/Viral_disease_testing

    Specificity indicates how well-targeted the test is to the virus in question. Highly specific tests pick up only the virus in question. Non-selective tests pick up other viruses as well. A 90% specific test will correctly identify 90% of those who are uninfected, leaving 10% with a false positive result. [13]

  3. Laboratory diagnosis of viral infections - Wikipedia

    en.wikipedia.org/wiki/Laboratory_diagnosis_of...

    The first called IgM is highly effective at neutralizing viruses but is only produced by the cells of the immune system for a few weeks. The second, called, IgG is produced indefinitely. Therefore, the presence of IgM in the blood of the host is used to test for acute infection, whereas IgG indicates an infection sometime in the past. [ 8 ]

  4. Viral culture - Wikipedia

    en.wikipedia.org/wiki/Viral_culture

    Viral culture is a laboratory technique [1] in which samples of a virus are placed to different cell lines which the virus being tested for its ability to infect. If the cells show changes, known as cytopathic effects, then the culture is positive.

  5. Rapid antigen test - Wikipedia

    en.wikipedia.org/wiki/Rapid_antigen_test

    A COVID-19 Rapid Antigen test(top) with a Covid-19 Rapid Antigen and a Influenza A&B Rapid Antigen Test(bottom) A rapid antigen test (RAT), sometimes called a rapid antigen detection test (RADT), antigen rapid test (ART), or loosely just a rapid test, is a rapid diagnostic test suitable for point-of-care testing that directly detects the presence or absence of an antigen.

  6. COVID-19 testing - Wikipedia

    en.wikipedia.org/wiki/COVID-19_testing

    Test errors can be false positives (the test is positive, but the virus is not present) or false negatives, (the test is negative, but the virus is present). [179] In a study of over 900,000 rapid antigen tests, false positives were found to occur at a rate of 0.05% or 1 in 2000.

  7. COVID-19 rapid antigen test - Wikipedia

    en.wikipedia.org/wiki/COVID-19_rapid_antigen_test

    The test detects proteins from both SARS-CoV-2 (the virus that causes COVID-19) and influenza A and B (the viruses that causes flu). [95] This is the first over-the-counter (OTC) test that can detect influenza to be granted marketing authorization using a traditional premarket review pathway, which enables the test to be marketed in the absence ...

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  9. Bloodstream infection - Wikipedia

    en.wikipedia.org/wiki/Bloodstream_infection

    Viruses: Viremia is a medical condition where viruses enter the bloodstream and hence have access to the rest of the body. It is similar to bacteremia, a condition where bacteria enter the bloodstream. [10] The name comes from combining the word "virus" with the Greek word for "blood" (haima). It usually lasts for 4 to 5 days in the primary ...