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118
proper precautions are being taken for preventing the spread
of the disease. Employees of the Royal Arsenal are not
allowed to remain at work unless cases are removed to hospital
or a certificate of efficient home isolation is issued by the
Medical Officer of Health. During the year three such
certificates were issued.
Dick Test. This has not been employed in the area so
far as I am aware.
DIPHTHERIA.
Notification. During the year 300 cases of diphtheria
were notified, compared with 278 in 1927 and 393 in 1926.
The case rates for the various registration districts in the
Borough are given in detail in Table No. 47. The number
of notifications received each quarter was as follows :—
First quarter 102. Third quarter 67
Second quarter 61. Fourth quarter 70
Deaths. There were 14 deaths, 5 occurring in school
children, and 8 in those under school age. One adult, aged
60, died.
Return Cases. There were three return cases amongst
those isolated in hospital.
Multiple Cases. The following Table shows the house
distribution by wards. The term " house " is synonymous
with the term " family " except in seven instances, where
two families were involved.