29
Rejport of the County Medical Officer—General.
It should be borne in mind that the case-rate and case-mortality may be affected by variations
in the extent of use of bacteriological methods of diagnosis, the effect of which is to increase the
notified number of clinically mild cases of the disease.
Table: The diphtheria case-rates, death-rates, and case-mortality in 1912, and preceding periods, are shown in the following table:—
The diphtheria case-rates, death-rates, and case-mortality in 1912, and preceding periods, are shown in the following table:—
Diphtheria
death-rates
in London.
The death-rate in each year since 1858 in relation to the mean death-rate of the period 18591912
is shown for diphtheria and also for diphtheria and croup combined in diagram (M).
The monthly case-rate and case-mortality in each of the years 1891-1912 in relation to the mean
of the period is shown in diagram (0).
Table: If the London diphtheria death-rate be compared with the death-ratea of the following large English towns it will be seen that in the quinquennium 1907-11 the London rate was exceeded by that of all except Sheffield, Nottingham and Leicester, and in 1912 was exceeded by the rates of all except Sheffield, Hull, Nottingham and Leicester.
If the London diphtheria death-rate be compared with the death-ratea of the following large English towns it will be seen that in the quinquennium 1907-11 the London rate was exceeded by that of all except Sheffield, Nottingham and Leicester, and in 1912 was exceeded by the rates of all except Sheffield, Hull, Nottingham and Leicester.
Table: The following table shows the diphtheria cases, deaths, case-rates, and death-rates for the year 1912, and the case-rates and death-rates for the period 1907-11, in the several sanitary districts:—
The following table shows the diphtheria cases, deaths, case-rates, and death-rates for the year 1912, and the case-rates and death-rates for the period 1907-11, in the several sanitary districts:—
Diphtheria
cases, deaths
and deathrates
in
London
boroughs.
(a) The Infectious Disease (Notification) Act came into force in 1889. (h) See footnote (c), page 4.
