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1925] 28
In London ihe attack-rate was 2.75 per 1,000, and the six Encircling
Boroughs 2.85.
Scarlet Fever.—1,139 cases were notified, and they showed a decrease of
1G on the average (1,155) of the ten years 1915-21. The attack-rate was equal to
3.3G per 1,000 of the civil population annually, which is a decrease of 0.21 per
1,000 of the mean rate (3.60) of the preceding ten years. In London the attackrate
was 2.90 per 1,000 of the civil population, while in the Encircling Boroughs
it was 2.80.
Enteric Fever.—Only 10 cases were notified, a decrease of 10 on the
average (20) that obtained during the ten years 1915-24. The attack-rate was 0.03
per 1,000 annually, or 0.03 per 1,000 below the mean rate (0.06) of the last ten
years.
In London the rate was 0.08, and in the Encircling Boroughs 0.05 per 1,000
of the civil population.
Typhus Fever.-No case was notified.
Puerperal Fever.-See pages 13 and 23.
Erysipelas. —109 cases were notified, or 12 below the average 151 of the
preceding ten years, the attack-rate being 0.32 per 1,000 of the civil population.
FATALITY FROM THE EIGHT PRINCIPAL NOTIFIABLE
INFECTIOUS DISEASES.
By "Fatality" is meant the percentage proportion of deaths to attacks of
sickness. During the year it was found that of the 2,194 cases notified, 51 deaths
occurred, or 2.3 per cent., which contrasts with an average percentage of 04.3 in
the preceding ten years 1915-24.
Years.
Cases.
Deaths.
Fatality.
1915 2,210 118 5.3
1910 1,439 87 6.0
1917 1,251 55 4.4
1918 1,127 67 6.0
1919 1,993 96 4.8
1920 2,853 173 6.0
1921 4,344 146 3.3
1922 2.787 102 3.7
1923 2,096 48 2.3
1924 2,087* 65 3.1
Mean 2,218 96 4.3
1925 2,194 51 2.3
including 2 cases not notified.
Hospital Isolation.—Of the 2,194 cases of infectious diseases notified,
2,105 were isolated in hospital, or a percentage of 95.9, while only 4.1 per cent.
of the patients, therefore, were nursed at home. This is the highest number on
record.