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JAMA. 1931;96(12):960-961. doi:10.1001/jama.1931.02720380048022.
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Increase in Diphtheria in Europe  Professor Bürgers, director of the hygienic institute in Königsberg, reports in the Deutsche medizinische Wochenschrift that since the low ebb of diphtheria in Germany in 1923 (19,599 cases) the curve has risen to 38,604 for 1930 up to October 25. There may be said to be an epidemic incidence of diphtheria especially as there must be a large number of unannounced cases as against the reduced number of susceptible children, compared with the prewar period. The question arises as to whether this is a transient increase or the rising tide of a large wave. As to the causes of this manifestation, the range of diphtheria morbidity in other countries deserves attention. A survey reveals that, in Germany and in most other countries, the low ebb of diphtheria was recorded in 1923. From then on, there has been a distinct upward trend of the figures. In


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