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  2. List of reagent testing color charts - Wikipedia

    en.wikipedia.org/wiki/List_of_reagent_testing...

    Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2] For this reason it is essential to use multiple different tests to show all adulterants.

  3. Diego antigen system - Wikipedia

    en.wikipedia.org/wiki/Diego_antigen_system

    The Wright a antigen (Wr a), a very low frequency blood type, was also discovered in 1953. The Wright b antigen (Wr b), a very high frequency blood type, was discovered about a decade later, but the two types were not recognized as a pair for another 20 years. The Wright group was eventually identified as a single point mutation on the SLC4A1 gene.

  4. 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.

  5. Ii antigen system - Wikipedia

    en.wikipedia.org/wiki/Ii_antigen_system

    The Ii antigen system is a human blood group system based upon a gene on chromosome 6 and consisting of the I antigen and the i antigen. [1] The I antigen is normally present on the cell membrane of red blood cells in all adults, while the i antigen is present in fetuses and newborns. [2]

  6. Antigen - Wikipedia

    en.wikipedia.org/wiki/Antigen

    An illustration that shows how antigens induce the immune system response by interacting with an antibody that matches the molecular structure of an antigen. In immunology, an antigen (Ag) is a molecule, moiety, foreign particulate matter, or an allergen, such as pollen, that can bind to a specific antibody or T-cell receptor. [1]

  7. History and naming of human leukocyte antigens - Wikipedia

    en.wikipedia.org/wiki/History_and_naming_of...

    It was found that some antigens that behaved like A and B antigens but could be excluded based on '2-type max' exclusion. Thus a new group, "C" was created. Classification of C antigens is still ongoing, and they have retained the name Cw as many serotypes have not been developed. The classification of the "A4" antigens was complicated.

  8. Denzel Washington Has Been Sober for 10 Years, Says He ... - AOL

    www.aol.com/denzel-washington-sober-10-years...

    Denzel Washington revealed to Esquire magazine as part of a recent cover story that he is 10 years sober. He cut off alcohol at 60 years old after a 15-year drinking pattern that started in the ...

  9. COVID-19 rapid antigen test - Wikipedia

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

    COVID-19 rapid antigen tests (RATs) have been widely used for diagnosis of COVID-19. The World Health Organization (WHO) COVID-19 Case Definition states that a person with a positive RAT (also known as an antigen rapid diagnostic test or Antigen-RDT) can be considered a "confirmed case of SARS-CoV-2 infection" in two ways. [10]