It is difficult to state the cause of so large an increase. The
subject is receiving marked attention from all those who are
engaged in Public Health work.
The following table will show the number of notifications of Diphtheria that have been received by me since 1890, and also the number of deaths that have occurred from that disease during each year since:—
|Notified cases of Diphtheria.||Deaths from Diphtheria.|
|1890 53||1890 26|
|1891 48||1891 21|
|1892 43||1892 9|
|1893 170||1893 51|
|1894 139||1894 38|
|1895 215||1895 41|
|1896 400||1896 59|!()
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In both England and London the mortality from Diphtheria
was less in the decade 1871.80 than in 1861.70, but in the
decade 1881.90 it was greater than in the second, and in London
had increased to a higher ratio even than in the first decade.
Comparing London to England in the first decade, the ratio
of mortality was about 5 per cent. lower than that of England,
in the second decade about equal, and in the third about
6 per cent. higher.
It is strange that whilst formerly it was more prevalent in the
rural districts, it now appears to affect the urban most.