Figure 1From: Antibody levels to tetanus, diphtheria, measles and varicella in patients with primary immunodeficiency undergoing intravenous immunoglobulin therapy: a prospective studyCorrelation between serum and IVIG antibodies. Measles: r = 0.232; p = 0.034. Varicella: r = 0.342; p = 0.001. Tetanus: r = 0.189; p = 0.084. Diphtheria: r = 0.355; p = 0.001.Back to article page