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31
The hospital superintendents forward the names of any
children discharged while still suffering from rhinorrhoea.
36. Home Isolation. 15 certificates of efficient home
isolation were given to enable men to continue their employment
in the Arsenal, and so obviate unnecessary removal to
hospital, compared with 25, 12 and 31 in the three preceding
years.
In the Annual Report for 1911 a comparison was made
between home and hospital isolation, showing that, whereas
there were only 1.6 per cent. of failures in home isolation, there
were 4.6 per cent. in hospital isolation. Failure means the
occurrence of secondary cases attributed to the primary case.
37. The Annual Report for 1905 contained a special report
on a statistical investigation into school incidence of scarlet
fever and diphtheria during the ten years 1896-1905.
DIPHTHERIA.
38. 240 cases of diphtheria were notified (excluding 46
cases of mistaken diagnosis). The case-rate (number of cases
per 1,000 population), corrected for cases of mistaken diagnosis
was 1.77, compared with 3.09, 1.91 and 2.72, in the
three preceding years, and 1.99, the average of the ten years
1901-10.
39. There were 20 deaths, compared with 20, 17 and 34
in the three preceding years. The death-rate was 0.15,
compared with 0.26 in 1914, 0.13 in 1913, and 0.14, the average
of the five preceding years.
The London death-rate was 0.15, compared with 0.12 in
the five preceding years.
40. 87 of the total cases notified were in Woolwich parish,
85 in West Plumstead, 98 in East Plumstead, and 16 in
Eltham. The following table shows the case-rate in each