Figure 2From: Six Mantoux tuberculin skin tests with 1, 2, 5, 10, 20, and 50 units in a healthy male without side-effects – is skin reaction a linear function of tuberculin dose?Tuberculin skin test induration as a function of tuberculin dose. Six simultaneous Mantoux tests, using 1, 2, 5, 10, 20, and 50 TUs PPD-RT23 per 0.1 mL (see Figure 1).Back to article page