10
Morbidity
A certain amount of tuberculin testing has been done over the past 3 or 4 years, rather sporadically as circumstances have permitted, principally among school children, The method used has principally been, for the sake of simplicity, the Wollmer Patch Test read 72 hours after application. The results of these surveys have been consolidated and are presented below :
Age
Total Number
Group.
Tested.
Total Number of Percentage of positive reactors. Positive Reactors.
1
2
-antnoto
41
94
3 18
7.3%
19.1%
3
98
16
16.3%
4
89
40
440 9%
5
65
31
47.7
6
85
33
38.8%
7
84
40
47.6%
8
141
73
51.8%
9
184
109
59.2%
10
237
154
65
11
255
164
640
12
366
213
58.2%
13
458
254
55.5%
14
510
328
64.3%
15
507
321
63.3%
16
908
646
71. 1%
17 & Over
251
140
55.8%
All ages
4,373
2,583
59%1%
In view of the fact that testing has been done by Wollmer patch test the results obtained in children 12 years and upwards must be interpreted with considerable reserve, The results shown among the younger children give a fair reflection of the amount of infection in the community.
At the same time tuberculin testing has been done as a routine measure among children under 8 years of age who are contacts of known cases of pulmonary tuberculosis, again done by Patch Test. This practice has been in operation since March, 1949. Breakdown into age groups has not been done.
The total results of these examinations are as follows :-
Number of contacts under 8 years of age
Tuberculin tested
Percentage positive
2295
36.6
Total number of contacts(all ages) X-rayed ........
.. 8662
Total number of contacts(all ages) found
to have active Tuberculosis
626 or 7.2%
Page 10Page 11