Negative cutaneous tuberculin reaction is one of the corroborative evidences of absence of tuberculosis, unless reaction is prevented by very advanced disease or tolerance to tuberculin established by tuberculin treatment.
3 Thorough study of the history and thorough physical examination of each individual case are more important and should precede the application of any test.
FOOTNOTES:
[1] For illustration, see Knopf, "Tuberculosis," Chap. IV, page 67.
[2] See Carrington, "Fresh Air and How to Use It," Chap. II, page 29.
[3] For illustration, see Carrington, "Fresh Air and How to Use It," Chap. II, page 37.
[4] For illustration, see Carrington, "Fresh Air and How to Use It," Chap. VIII, page 128.
[5] For illustration, see Knopf, "Tuberculosis," Chap. IV, page 58.
[6] For illustration, see Carrington, "Fresh Air and How to Use It," Chap. VII, page 108.
[7] See previous footnote.