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II.—NOTIFICATION OF INFECTIOUS DISEASE.
In Table V. of Appendix will be found particulars of infectious
diseases notified during the year under report.
The number of cases notified, exclusive of notifications of tuberculosis,
which numbered 413, was 2,077 compared with 2,045 in
1921 and 1,486 in 1920. The disease showing the principal increase
was diphtheria.
The attack rate per thousand inhabitants was 17.15 against
16.29 in 1921.
41 cases were returned from hospital as not suffering from the
disease for which they were notified, but, if allowance is made for
mild unreported cases, the recorded notifications would, if anything,
understate the actual number of cases.
Diphtheria.
There were 1,110 cases of diphtheria notified in 1922 as against
741 cases in 1921.
The attack rate per thousand inhabitants was 9.16, against
5.90 in 1921. The case mortality was 8.1 per cent., against 9.3 per
cent, in 1921, and 9.3 per cent. in 1920. 25 cases were returned as
not suffering from this disease.
Small Pox.
2 cases notified; I returned as not suffering.
Scarlet Fever.
The notifications of scarlet fever in 1922 were 652, against
1,164 in 1921.
This is a decrease of 512. The distribution of the disease in
the various Wards, as shown in Table V. of Appendix, was fairly
uniform.
15 cases were returned from hospital as not suffering from
scarlet fever.
There were 11 deaths, which gives the very low case mortality
of l.7 per cent., against 1.5 per cent. in 1921. The disease, as in
recent years, was of a very mild type. The attack rate per thousand
inhabitants was 5.37 against 9.66 in 1921.