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TOTAL PRIMARY SCHICK TESTS PERFORMED DURING THE FIVE YEARS 5203
Percentage positive 84.82. Percentage naturally negative 15.18.
Age
Cases Tested
Negative
Positive
Percentage Immune
1
341
3
338
0.88
2
338
6
332
1.7
3
243
12
231
4.9
4
373
27
346
7.2
5
763
63
700
8.2
6
607
57
550
9.4
7
551
83
468
10.3
8
493
96
397
19.4
9
493
129
364
26.1
10
405
108
297
26.6
11
227
70
157
30.8
12
163
58
105
35.5
13
206
78
128
37.8
Total
all
ages
5203
790
4413
15.18
It will be noticed that the largest jump in natural immunity occurs between the years of
7 and 8, and these figures certainly suggest that children over 7 years of age should be Schicktested
before a course of immunisation is undertaken
Up to the age of 7 years the primary
Schick test may possibly be dispensed with in routine work, if the figures obtained subsequently
are not to be employed eventually for statistical purposes.
Results of Schick Tests up to and including 5 years of age.
Total cases 2058.
Positive 1947. Negative 111.
From 6 to 10 years inclusive.
Percentage immune 5.37.
Total cases 2549.
Positive 2076. Negative 473.
From 11 to Adult Life.
Percentage immune 18.5.
Total cases 5%.
Positive 390. Negative 206.
Percentage immune 34.5.
Actual Numbers of Subjects of Various Ages who have Attended Clinic.
5 years and under 2058
6 to 10 years inclusive 2549
11 years to adult life 596
5203
Total Certificates Issued to Date, 4287.
(1) Actively immunised 3523
(2) Naturally immune 764
40