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  2. Cryptococcosis - Wikipedia

    en.wikipedia.org/wiki/Cryptococcosis

    Cerebrospinal fluid (CSF) or blood antigen testing by lateral flow assay for cryptococcal antigens has a sensitivity and specificity greater than 99% for cryptococcosis. [19] A CSF fungal culture can tell if there is a microbiological failure (failure of the fungal infections to treat the infection). CSF fungal culture has a 90% sensitivity and ...

  3. Cryptococcus neoformans - Wikipedia

    en.wikipedia.org/wiki/Cryptococcus_neoformans

    Cryptococcal antigen from cerebrospinal fluid is thought to be the best test for diagnosis of cryptococcal meningitis in terms of sensitivity, though it might be unreliable in HIV-positive patients. [12] The first genome sequence for a strain of C. neoformans (var. neoformans; now C. deneoformans) was published in 2005. [5]

  4. Hook effect - Wikipedia

    en.wikipedia.org/wiki/Hook_effect

    Illustration of the effects of excess antigen and blocking antibodies on immunoassays. In an agglutination test, a person's serum (which contains antibodies) is added to a test tube, which contains a particular antigen. If the antibodies interact with the antigen to form immune complexes, called agglutination, then the test is interpreted as ...

  5. Latex fixation test - Wikipedia

    en.wikipedia.org/wiki/Latex_fixation_test

    A latex fixation test, also called a latex agglutination assay or test (LA assay or test), is an assay used clinically in the identification and typing of many important microorganisms. These tests use the patient's antigen - antibody immune response.

  6. Lateral flow test - Wikipedia

    en.wikipedia.org/wiki/Lateral_flow_test

    A NASA illustration of a lateral flow assay. A lateral flow test (LFT), [1] is an assay also known as a lateral flow immunochromatographic test (ICT), or rapid test.It is a simple device intended to detect the presence of a target substance in a liquid sample without the need for specialized and costly equipment.

  7. Cryptococcus - Wikipedia

    en.wikipedia.org/wiki/Cryptococcus

    Cryptococcus is a genus of fungi in the family Cryptococcaceae that includes both yeasts and filamentous species. The filamentous, sexual forms or teleomorphs were formerly classified in the genus Filobasidiella , while Cryptococcus was reserved for the yeasts.

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

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

    According to a 2021 study, at-home antigen test Flowflex had a 100% accuracy in negative test results and 93% in positive results. BinaxNOW antigen tests had a sensitivity of 92.6% for symptomatic ...

  9. Lymphocyte function-associated antigen 1 - Wikipedia

    en.wikipedia.org/wiki/Lymphocyte_function...

    Lymphocyte function-associated antigen 1 (LFA-1) is an integrin found on lymphocytes and other leukocytes. [1] LFA-1 plays a key role in emigration, which is the process by which leukocytes leave the bloodstream to enter the tissues. LFA-1 also mediates firm arrest of leukocytes. [2]