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  2. Mantoux test - Wikipedia

    en.wikipedia.org/wiki/Mantoux_test

    Mantoux test injection site in a subject without chronic conditions or in a high-risk group clinically diagnosed as negative at 50 hours. Tuberculin is a glycerol extract of the tubercle bacillus. Purified protein derivative (PPD) tuberculin is a precipitate of species-nonspecific molecules obtained from filtrates of sterilized, concentrated ...

  3. Tuberculin - Wikipedia

    en.wikipedia.org/wiki/Tuberculin

    The test used in the United States at present is referred to as the Mantoux test. An alternative test called the Heaf test was used in the United Kingdom until 2005, although the UK now uses the Mantoux test in line with the rest of the world. Both of these tests use the tuberculin derivative PPD (purified protein derivative). [citation needed]

  4. Tine test - Wikipedia

    en.wikipedia.org/wiki/Tine_test

    The tine test is similar to the Heaf test, although the Mantoux test is usually used instead. There are various forms of the tine tests which usually fall into two categories: the old tine test (OT) and the purified protein derivative (PPD) tine test. Common brand names of the test include Aplisol, Aplitest, Tuberculin PPD TINE TEST, and ...

  5. Heaf test - Wikipedia

    en.wikipedia.org/wiki/Heaf_test

    The equivalent Mantoux test positive levels done with 10 TU (0.1 mL 100 TU/mL, 1:1000) are 0–4 mm induration (Heaf 0-1) 5–14 mm induration (Heaf 2) >15 mm induration (Heaf 3-4) The Mantoux test is preferred in the United States for the diagnosis of tuberculosis; multiple puncture tests, such as the Heaf test and Tine test, are not recommended.

  6. Pour point depressant - Wikipedia

    en.wikipedia.org/wiki/Pour_point_depressant

    [2] Alkylaromatics and aliphatic polymers are two types of pour point depressants that are commercially available. Most commercially available pour point depressants are organic polymers , but nonpolymeric substances such as phenyltristearyloxysilane and pentaerythritol tetrastearate may also be effective.

  7. Cord factor - Wikipedia

    en.wikipedia.org/wiki/Cord_factor

    This monolayer also forms in oil-water, plastic-water, and air-water surfaces. [1] In an aqueous environment free of hydrophobic surfaces, cord factor forms a micelle. [11] Furthermore, cord factor interlocks with lipoarabinomannan (LAM), which is found on the surface of M. tuberculosis cells as well, to form an asymmetrical bilayer.

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