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59
SCARLET FEVER.— The total number of cases notified
daring the year amounted to 558. compared with 576 in 1905.
Of this number. 469. or 85 per cent were removed to
the Metropolitan Asylums Board.s Hospitals. Subsequently 15
cases stated to be not suffering from any infectious disease
were returned to their homes. Deducting this number. a
corrected total of 543 is obtained. compared with 548 in 1905.
equal to an attack rate of 3.65 per 1.000 persons. compared with
3.79 in 1905. a slight decrease. The attack rate for the County
of London was 4.30.
An examination of the attack rates for the various Wards
shows that the highest occurred in Blackheath Ward (0.37 per
1.000) and that the Ward least affected was Church Ward. Lee.
with 1.88.
Forty.three per cent. of the cases occurred among
children between the ages of 5 and 10 years. and 28 per cent.
to children under the age of five.
Case Mortality.—Of the 543 cases. 2.57 per cent. proved
fatal. compared with 0.91 per cent. in the preceding year. from
which it will be seen that although the number of cases notified
was less than in 1905. the disease assumed a more severe type.
causing a much higher mortality.
DIPHTHERIA.—Two hundred and sixty cases of
Diphtheria were notified. compared with 157 in 1905. of which
number 210. or 81 per cent were removed to hospital. Sixteen
cases were returned home as not suffering. giving a
corrected total of 244. an increase of 102 over the figure for
1905 (142). The attack rate per 1.000 of the population
amounted to 1.64. compared with 0.98 in 1905. The rate for
the County of London was 1.70.