Fortified foods contain vitamin D in the form of either D2 or, more commonly, D3, which is the type produced by human skin exposed to sunlight. Salmon, tuna, swordfish and mackerel are examples of fish whose flesh contains vitamin D, notes the NIH Office of Dietary Supplements.
Definition of Wassermann test. : a test for the detection of syphilis using the Wassermann reaction âcalled also Wassermann.
tuberculin skin test-a skin test to determine past or present infection with the tuberculosis bacterium; based on hypersensitivity of the skin to tuberculin.tuberculin test. skin test-any test to determine immunity or sensitivity to a disease by introducing small amounts on or into the skin.uberculin skin test-a skin test to determine past or present infection with the tuberculosis bacterium; based on hypersensitivity of the skin to tuberculin.