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15
SPECIFIC INFECTIOUS DISEASE.
During 1916 there were 2,663 cases of acute infectious disease
notified in the Borough; of these 32 were subsequently found not
to be suffering from notifiable infectious disease, thus reducing the
number of genuine cases to 2,631. This total shows an increase of
1072; but this increase is due to the fact that the total includes
1,412 cases of measles and 230 cases of German measles, these
diseases having been made notifiable on the 1st January, 1916.
The attack rate in respect of the acute notifiable infectious diseases
for the year is 12 5 per 1,000 persons living.
The deaths from the chief zymotic diseases numbered 176,
This is equivalent to a zymotic death-rate of .8 per 1,000 living in
the Borough.
A.—NOTIFIABLE INFECTIOUS DISEASES (ACUTE).
Small-pox.—No case of this disease was notified in the Borough
during 1916.
Scarlet Fever or Scarlatina.—The number of cases of scarlet
fever notified during 1916 was 412, but of these 15 were found
afterwards not to be suffering from this disease, thus reducing the
genuine cases to 397. This is a decrease of 335 upon the number
of genuine cases notified during 1915.
The attack rate for scarlet fever is 1.8 per 1,000 persons living.
The number of cases of scarlet fever removed to hospital was 373.
This is equal to nearly 94 per cent. of the total notified.
The deaths from scarlet fever numbered 5, which is equal to
mortality of 1.7 per cent. attacked and .03 per 1,000 living.
Diphtheria and Membranous Croup.—There were 359 cases
of diphtheria and 3 cases of membranous croup notified during the
year, but of these 11 cases were found subsequently not to be