Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Dagenham]
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The following table shows the relation of the number of immunes in the household to the Schick-reactions of the children of various ages :—
No. of immunes in family. | Under 7. | 7 and 8. | 9 and 10. | 11 and over. |
---|---|---|---|---|
(The numbers in brackets are the total number of children dealt with
in the group.)
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. |
---|---|---|---|---|---|
It will be seen from the above two tables that the number
who are naturally immune bears a direct relationship to the number
of persons who have acquired immunity with whom they are in close
contact.
The following table shows
Period of Residence. | Under 8 Percentage Positive. | 8 to 12 Percentage Positive. | 12 and over Percentage Positive. | Total Percentage Positive. |
---|---|---|---|---|
These four tables refer to all children dealt with in this district
from the time immunizing was started.