Fig. 1
From: Seroprevalence of diphtheria toxoid IgG antibodies in the Malaysian population

Geometric mean titers and corresponding 95% confidence limits of diphtheria toxoid antibody level by age (2–60 years). (n = 3317)
From: Seroprevalence of diphtheria toxoid IgG antibodies in the Malaysian population
Geometric mean titers and corresponding 95% confidence limits of diphtheria toxoid antibody level by age (2–60 years). (n = 3317)