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52
Isolation of Cases.—During the year the excessive prevalence of scarlet fever in
certain parts of the Metropolis led to some difficulty in connection with isolation.
Notwithstanding this, however, as the following table shows, the actual number of
cases removed to hospital was fairly high:—
Diphtheria 144 or 93.5 per cent, of the cases notified.
Erysipelas 21 „ 35.0 „ „ „
Scarlet Fever 188 „ 95.4 „ „ „
Enteric Fever 2 „ 40.0 „ „ „
Cerebro-spinal Meningitis 1 „ 100.0 ,, „ „
Ophthalmia Neonatorum 5 „ 22.7 „ „ „
Puerperal Fever 3 „ 50.0 „ „ „
Polio Myelitis 2 „ 40.0 „ „ „
Tuberculosis 74 „ 28.4 „ „ „
Measles 99 „ 10.1 „ „ „
Malaria 2 „ 4.5 „ ,, „
Pneumonia 25 „ 2.6 ,, „ „
The cost of carrying out the requirements of the Public Health (London) Act,
1891, and the various, regulations with regard to notification was £98 11s. 0d. equal
to £1 0s. 1d. per 1,000 of the population.

Discharge Notices.—The number of certificates received from the Metropolitan
Asylums Board regarding the return of patients sent to hospital with infectious
diseases was 189 and referred to 255 cases. Visits were paid to these cases by the
District Inspectors, and advice given as to date of the return of children to school and
the advisability of obtaining treatment for and isolation of any suffering from any
sequel of a disease.
Diphtheria and Membranous Croup.
Diphtheria was rather less prevalent in 1919 than in 1918—154 cases as against
157 in the previous year. Of the cases 11 died, and the case mortality rate was 7 per
cent., the same as in 1918.
The number of cases per 1,000 of the population was 1.57.
Throughout the whole year nothing in the way of grouping of the cases suggested
that there was anything like an outbreak of the disease. The cases, indeed, were more
or less evenly distributed and only in a few instances was it possible to determine