Where to get it: Green, leafy vegetables are the best source of this vitamin, also known as phylloquinone. Kale leads the pack with 1.1 mg per cup, followed by collard greens and spinach (about 1 mg per cup), and more exotic varieties like turnip, mustard, and beet greens.
Wassermann test - a blood test to detect syphilis; a complement fixation test is used to detect antibodies to the syphilis organism treponema; a positive reaction indicates the presence of antibodies and therefore syphilis infection. Wasserman reaction, Wassermann. complement fixation test - a blood test in which a sample of serum is exposed to a particular antigen and complement in order to determine whether or not antibodies to that particular antigen are present; used as a diagnostic test.
Learn about this topic in these articles: syphilis. ...Toward the close of the century the principle of insect-borne transmission of disease was established. Serological tests were developed, such as the Widal reaction for typhoid fever (1896) and the Wassermann test for syphilis (1906). An understanding of the principles of immunity led to the development of active immunization to specific diseases.