[The epidemiological changes of diphtheria since beginning of the pandemia?].
D001699:Biometry; D004165:Diphtheria / Q000453:epidemiology* / Q000706:statistics & numerical data*; D058873:Pandemics
DIPHTHERIA/epidemiology and statistics
Was hat sich in der Epidemiology der Diphtherie seit Einbruch der Pandemie geandert?