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27
(a) Scarlet Fever.—The number of cases notified was -10,
compared with 18 the previous year. No fatal cases occurred.
There were no cases connected with any special milk supply,
infection being mainly spread, as is usually the case, through
school attendance. 34 cases were isolated at the Municipal
Hospital. The average stay of scarlet-fever cases in hospital was
36,2 days, the longest period being 63 and the shortest 26 days.
There were 4 return cases of scarlet fever during the year.
(b) Small Pox.—No case of Small Pox occurred in 1921.
Notifications of 5 persons who had been in contact with cases
of Small Pox were received and kept under supervision for the
usual period.
The following particulars arc appended of vaccinations during
1921 :—
Certificates of successful vaccinations 340
Postponed 10
Conscientious objections 424
Left District 20
The vaccination rate per 1,000 births was therefore 452.1.
(c) Diphtheria.—50 cases were notified rs compared with 30
the previous year. 3 deaths occurred (including one in an
outlying institution). 45 cases were isolated at the Municipal
Hospital. The average stay of diphtheria cases in hospital
was 35.1 days, the longest stay being 61 days and the
shortest 24 days. Of fatal cases, one died the same day as
admitted, whilst the other remained 5 days in hospital. As
usually happens, the principal medium of the spread of the
disease was school attendance. Patients are discharged cured
trom hospital only after bacteriological investigation, and in only
one case was a long delay incurred. Two cases of laryngeal
diphtheria were admitted to hospital. In one tracheotomy was
performed, the other being moribund, died shortly after admission.