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  2. Rapid plasma reagin - Wikipedia

    en.wikipedia.org/wiki/Rapid_plasma_reagin

    The rapid plasma reagin test (RPR test or RPR titer) is a type of rapid diagnostic test that looks for non-specific antibodies in the blood of the patient that may indicate an infection by syphilis or related non-venereal treponematoses.

  3. Wassermann test - Wikipedia

    en.wikipedia.org/wiki/Wassermann_test

    The Wassermann test or Wassermann reaction (WR) [1] is an antibody test for syphilis, named after the bacteriologist August Paul von Wassermann, based on complement fixation. It was the first blood test for syphilis and the first in the nontreponemal test (NTT) category. Newer NTTs, such as the RPR and VDRL tests, have mostly

  4. Nontreponemal tests for syphilis - Wikipedia

    en.wikipedia.org/wiki/Nontreponemal_tests_for...

    With nontreponemal tests, false-positive reactions can occur for a large number of reasons, the most common of which is other infections, both viral and bacterial. Additionally these tests may show false-negative when the patient's antibody titer is very high due to a hook effect (also called a prozone effect).

  5. How common are false-positive COVID tests? Experts weigh in.

    www.aol.com/lifestyle/common-false-positive...

    However, one study found that the false-negative rate can be as high as 20 percent when a person is tested five days after developing symptoms. It's much higher — nearly 100 percent — when ...

  6. Seroconversion - Wikipedia

    en.wikipedia.org/wiki/Seroconversion

    Serological assays may give a false positive result, causing the individual to appear to have seroconverted when the individual has not. False positives can occur due to the test reacting to, or detecting, an antibody that happens to be sufficiently similar in structure to the target antibody.

  7. What Really Causes a False Positive COVID-19 Test? Experts ...

    www.aol.com/lifestyle/false-positive-covid-19...

    If you test positive at home, don’t assume it’s a false positive, especially if you’re experiencing symptoms of COVID-19. “If you have no symptoms and are testing because of an upcoming ...

  8. Are False Positive Covid Tests Common? Doctors Explain. - AOL

    www.aol.com/false-positive-covid-tests-common...

    A false positive Covid-19 test result can happen, but it’s rare, says Brian Labus, Ph.D., ... even if you don’t have symptoms. The positive result means the virus was detected.

  9. False positives and false negatives - Wikipedia

    en.wikipedia.org/wiki/False_positives_and_false...

    The false positive rate (FPR) is the proportion of all negatives that still yield positive test outcomes, i.e., the conditional probability of a positive test result given an event that was not present. The false positive rate is equal to the significance level. The specificity of the test is equal to 1 minus the false positive rate.