#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
  supertype:  blood_test__bloodtest  a serologic analysis of a sample of blood
  subtype:  Wassermann_test__wassermanntest__Wasserman_reaction__Wassermann  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

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