تست Diphtheria Ab (IgG)

<0.01 IU/ml No protection 
(individuals without immunisation 
should receive two vaccinations 
with a time interval of 4-8 
weeks and a third vaccination 
6-12 months after the second one) 
0.01-0.099 IU/ml Uncertain protection 
>=0.1 IU/ml Immunisation protection present 
>1.0 IU/ml Long-term immunisation protection