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1909]
118

In the Quarters.—In the first quarter there were 548 cases notified,
which produced an annual attack rate of 6.24 per 1000 inhabitants. The return
was 41 above the corrected average for the first quarters of the preceding 10
years, the increase being chiefly due to scarlet fever. The rate was, however,
below that of the County of London (6.42 per 1000), but slightly above the rate
of the Encircling Boroughs, 6.02.
In the second quarter, altogether 482 cases were notified, which produced
an annual attack rate of 5.49 per 1000 inhabitants. These cases compare with
a corrected average of 50.3 in the second quarters of the preceding 10 years. In
London the attack rate was 5.98 per 1000, while in the Encircling Boroughs it
was 5.11.
In the third quarter 502 cases were notified, which yielded an attack rate
of 6.40 per 1000 of the inhabitants. They were 83 below the corrected average
(045) of the third quarters of the preceding 10 years. In the County of London
the rate was 6.21 per 1000, and in the Encircling Boroughs 6.56.
In the fourth quarter, 457 notifications were received, which represented
an annual attack rate of 5.20 per 1000 of the population. These cases were
300 below the corrected average (757) which obtained in the fourth quarter of
the preceding 10 years. The cause of sc large a decrease was chiefly due to the
fact that Scarlet Fever exhibited 121 cases less than it usually does at this
period of the year, whilst Diphtheria showed a decrease of 71, Enteric Fever
of 56, and Erysipelas of 46. Indeed, all the diseases were less than is usual
at this quarter. In London the attack rate was 5.83, and in the Encircling
Boroughs 5.35 per 1000 of the inhabitants.