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not strictly comparable. Still, the numbers offer a striking
contrast with the fatality at the Hostels and British Hospital.
No doubt it is partly accounted for by the different age distribution,
but the fact of the two Institutions securing better
ventilation and isolation, together with immediate treatment, no
doubt very largely accounts for the difference.
SUMMARY
1. There were 454 deaths from Influenza in 1913, 26 in June
and July, 417 in October to December.
3. The chief incidence was at the ages from 5 to 45, and
females were more affected than males.
3. The incubation was mainly two or three days, but varied
from 36 hours to 7 days.
4. A previous attack in June or July offered considerable
protection against attack in October-December.
5. The proportion of attack at Institutions varied from two
in three to one in eight, nurses being; the most heavily
attacked.
6. The fatality at Institutions was about 1 per cent, and in
houses where deaths occurred 22 per cent.
7. Strong evidence was obtained from medical men, and at the
institutions, that open-air treatment diminished fatality,
BRONCHITIS AND PNEUMONIA.
5.3a. Bronchitis and pneumonia caused 345 deaths, compared
with 253, 285, 380, 290, and 294 in the five preceding years.
There was some increase in the deaths from bronchitis and
pneumonia in adults and great increase under five years. The
increase in children was probably due to increased mortality
from whooping cough and Influenza and in adults to Influenza.
As with Influenza the increase was chiefly in females