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8
PREVALENCE OF AND CONTROL OVER INFECTIOUS
DISEASE.
Diphtheria.—Twenty-five eases were notified, a decrease
of 43 from last year; 9 were recorded between 5 and 10 years
of age. One death was recorded under the age of one year,
giving ai death rate of 0.05 per 1,000 of population, and an
incidence rate of 1.3 per thousand of population.
The Public Health Department sent a circular letter to
every practitioner in the District, drawing his attention to the
fact that the acme of treatment in this disease was the
immediate administration of antitoxin in all doubtful cases.
Free antitoxin and a sterilized syringe are always available at
the Nelson Hospital, and at the Council Offices during office
hours.

92 per cent. of the cases were removed to hospital.
The figures for the previous years arc as follows—
1914 1915 1910 1917 1918 1919 1920 1921 1922 1923 1924
24 24 19 17 57 26 47 28 62 39 08
The number of swabs examined for the Diphtheria
Bacillus was 99.
Scarlet Fever.—Seventy-four cases were notified, which
equals an incidence rate of 3.9 per 1,000 of estimated