A standardized Wassermann screening test, which may be carried out in one tube.

Summary  A very simple one or two tube screening Wassermann test without preliminary complement and hemolytic antibody titrations can be carried out by using standardized test reagents. As reagents are used: a. Complement conserved according toRichardson; b. Sheep cells conserved in modified Alsever solution standardized colorimetrically to 2% red cell suspension; c. Hemolytic antibody prepared according to the prescriptions of the New York State Department of Health in a dilution giving maximal sensitization of the red cell.