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33
[1929
Scarlet Fever.—1,155 cases were notified, and they showed a decrease of
148 on the average (1,303) of the ten years 1919-28. The attack-rate was equal to
3.61 per 1,000 of the civil population annually, which is a decrease of 0.30 per
1,000 of the mean rate (3.91) of the preceding ten years. In London the attackrate
was 3.60 per 1,000 of the civil population, while in the Encircling Boroughs
it was 3.50.
Enteric Fever.—18 cases were notified which were 3 more than the
average that obtained during the ten years 1919-28. The attack-rate was 0.06
per 1,000 annually, or 0.02 per 1,000 above the mean rate (0.04) of the last ten
years.
In London the rate was 0.08, and in the Encircling Boroughs 0.07 per 1,000
of the civil population.
Typhus Fever.—No case was notified.
Puerperal Fever.—See page 12.
Erysipelas.—148 cases were notified, and were 14 above the average of the
preceding ten years, the attack-rate being 0.46 per 1,000 of the civil population.
FATALITY FROM THE PRINCIPAL NOTIFIABLE
INFECTIOUS DISEASES.
By " Fatality " is meant the percentage proportion of deaths to attacks of
sickness.

* Including 2 cases not notified. ‡ Includes 1 case not notified.
Hospital Isolation.— Of the 2,439 cases of infectious diseases notified,
2,337 were isolated in hospital, equal to a percentage of 95.8, while only 4.2 per
cent. of the patients were nursed at home.