that the tendency is to show that the greater the number
of immunes per family, the greater will be the number
who give a negative primary Schick reaction.
The following table shows the influence of a case of diphtheria occurring in the home on the Schick-reactions of the remaining occupants:—
|Age.||Positive.||Negative.||Total.||Percentage Positive.||Percentage Positive in general local population.|
|8 to 12||117||107||224||52.2||59.9|
|12 and over||32||29||61||52.5||48.9|!()
match: ALTO ComposedBlock
..\26 February 2013\Folder 11\b19787418\Tables\b19787418_0066_064_024.xml
These three tables refer to all children dealt with
in this district from the time immunizing was started.
Below is quoted an extract from a recent report on
American health statistics:—
"The striking reduction in diphtheria mortality
it is claimed is ' undoubtedly due to the extensive
employment of active immunization.' Among the
five largest cities, Detroit had the lowest rate, 0.6 per
100,000, New York coming second with a rate of 0.9.
Neither Rochester (N.Y.) nor Portland (Ore.), cities
with a population, the former, of 336,527, and the
latter of 315.000, it is worthy of note, had a single
death from diphtheria in 1935."
The figures for England and Wales are:—Mortality
7 per 100,000 ; Incidence 139 per 100,000.
There was a slight increase in the incidence of
Scarlet Fever, there being 482 cases notified, compared