I was fascinated and horrified by the hospital scenes in the book, when Conan Doyle is visiting people treated with tuberculin.
This being the case, it should not be necessary to force the tuberculin test upon owners.
In such dairies the tuberculin test is used at regular intervals, and the herd inspected frequently by competent veterinarians.
It is at this stage that the tuberculin test comes to the aid of the stockman.
Inspectors may subject any cattle showing symptoms of tuberculosis to the tuberculin test before allowing them to enter.
Only such cows shall be admitted to the herd as have not re-acted to a diagnostic injection of tuberculin.
Subsequent experiments showed that tuberculin exercised quite a different action to that of healing.
That the tuberculin test is a wonderfully accurate method of determining whether an animal is affected with tuberculosis.
Hence excess of enzyme is free in the blood and the injection of the tuberculin meets it there and a vigorous reaction results.
Koch's lymph, Bacillinum and Avian tuberculin must be studied separately, clinically as well as experimentally.
tuberculin tu·ber·cu·lin (tu-bûr'kyə-lĭn, tyu-)
A sterile liquid culture containing proteins of tubercle bacilli used chiefly in diagnostic tests for tuberculosis.