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(Chest. 1960;38:413-416.)
© 1960 American College of Chest Physicians

Thioglycollate, Peroxidase, Neutral Red, Serpentine Cord, and Niacin Tests for Group Differentiation of M. Tuberculosis, Anonymous (Atypical) Acid-Fast Bacilli, and Saprophytic Mycobacteria

MAURICE S. TARSHIS Ph.D.1

1 Director, Tuberculosis Research, Medical Research Laboratory, Veterans Administration Hospital.

From these results it can be seen that the peroxidase, neutral red, serpentine cord, and niacin tests are able, in most instances, to distinguish human tubercle bacilli from atypical and saprophytic mycobacteria, but they can not differentiate the atypical from the saprophytic group of organisms. On the other hand, the thioglycollate test is able, in most instances, to distinguish between all three groups, and when used in conjunction with the other tests, differentiation is further facilitated. All these tests are easy to perform, and have proved useful for group differentiation of M.tuberculosis, atypical acid-fast bacilli, and saprophytic mycobacteria.






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Copyright © 1960 by the American College of Chest Physicians.