RESULTS OF TUBERCULIN TESTS IN MONKEYS AT THE PHILADELPHIA ZOOLOGICAL GARDENS

Abstract
INTRODUCTION We have not thought it necessary to review the general literature on the subject of injections of tuberculin for diagnostic purposes. Much has been written on this subject in regard to both human beings and domestic animals. We have, however, been able to find comparatively little on the use of this valuable test applied to wild animals. The opportunity has presented itself to us to follow out the test in the monkeys of the Zoological Gardens of Philadelphia while we were serving in the capacity of pathologists. We present in the following paper the result of our observations on tuberculin as a diagnostic agent in these animals. The use of this test was started in 1905, and has been continued to the present. It has been noted in Philadelphia that the average life of a common monkey on exhibition varied between eighteen and twenty-one months. It has

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