1. Susceptibility to diphtheria in adults: prevalence and relationship to gender and social variables 
H. Völzke, K.M. Kloker, A. Kramer, L. Guertler, M. Dören, S.E. Baumeister, W. Hoffmann, U. John 
Clinical Microbiology and Infection 
Volume 12, Issue 10, Pages (October 2006)
DOI: /j x
Copyright © 2006 European Society of Clinical Infectious Diseases Terms and Conditions

2. Fig. 1
Age-dependent proportions of immunity against and susceptibility to diphtheria in both genders. All data are weighted against the population of West Pomerania. Immunity, IgG antibody titre against diphtheria toxin ≥ 0.1 IU/mL; susceptibility, IgG titre < 0.1 IU/mL.
Clinical Microbiology and Infection  , DOI: ( /j x)
Copyright © 2006 European Society of Clinical Infectious Diseases Terms and Conditions

3. Fig. 2
The odds of being susceptible to diphtheria with respect to gender and diphtheria toxoid vaccination during the past 10 years.
Clinical Microbiology and Infection  , DOI: ( /j x)
Copyright © 2006 European Society of Clinical Infectious Diseases Terms and Conditions