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3.79 per 1,000 persons, compared with 2.29 in 1904, an increase
of 1.50. (See Table 22).
An examination of the attack rates for the various Wards
shows that the highest occurred in Manor Ward (8'74 per 1,000)
and that the Ward least affected was Sydenham, with 1.69.
Forty-five per cent. of the total cases occurred among
children between the ages of 5 and 10 years, while 25 per cent.
of the cases occurred to children under the age of 5 years.
Case Mortality.—Of the 548 cases only 0.91 per cent.
proved fatal, compared with 2.17 per cent. in the preceding
year.
It will be seen that although there was a considerable
increase in the number of cases notified compared with the
previous year, the disease was of a much milder form, as is
shown by the very small case mortality.
DIPHTHERIA.—One hundred and fifty-seven cases of
Diphtheria were notified, of which number 116, or 74 per cent.,
were removed to hospital. Fifteen cases were returned home
as not suffering, giving a corrected total of 142, a slight increase
over the figure for the preceding year (117). The attack rate
per 1,000 of the population amounted to 0.98, compared with
0.83 in 1904, and 1.83 in 1903.
Blackheath Ward suffered most from this disease, having
an attack rate of 1.75. The Ward least affected was Brockley,
with an attack rate of 0.34.
Case Mortality.—Of the 142 cases, 8, or 5.6 per cent.,
proved fatal, compared with 11.1 per cent. in 1904.
In this disease also, although the number of cases shows
a slight increase over the preceding year, the case mortality is
very much smaller.