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52. 230 cases, or 83 per cent. of notifications, were removed
to hospital, compared with 67 per cent. in 1906. Certificates of
efficient home-isolation were given in 30 cases (21 in 1906, 8 in
1905).
The case mortality was only 6'3 per cent. compared with 9.9,
7.0, 17.8, 6.6, and 5.7 in the five preceding years, and with 8.9
in London.
If the Diphtheria death-rate which prevailed from 1896-1900
had been in operation last year, there would have been 60 deaths
from this disease last year instead of 15—the actual number.
53. Bacteriology is now systematically used to prevent children
attending London County Council Schools in an infectious state.
After a case has been notified in a house, no children from that
house are allowed to return to school until they have been certified
free from infection after a bacteriological examination. 175 home
contacts were examined by the Medical Officer of Health, and 26
carriers found and excluded from school until the diphtheria
bacillus had disappeared.
The Medical Officers of the Royal Arsenal examined employees
from infected houses before allowing them to return to work, and
discovered several bacteriological carrier cases.
Altogether, 24 cases, found to be "carriers" of the diphtheria
bacillus, without having any symptoms, were notified.
Five cases were reported as nasal.
54. Mistaken Diagnosis. 39 cases, or 14 per cent. of notifications,
were, after removal to hospital, stated not to be