PREVENTION 



159 



healthy herds. If they are admitted and later the fact is dis- 

 covered, it is necessary to remove them and to thoroughly 

 disinfect the stable. In eliminating the disease from a herd, 

 b}' means of the tuberculin test, it is necessary to retest the 



M 



Fig. 36. Temperature cui'zie of a tuberculous cow for 48 hours. The Hue 

 A. A. shoivs temperature for 24 hours preceding the injection of tuberculin 

 ivhich ivas injected at q a. m. , March 16 ; b. b. b. shows the temperature for the 

 24 hours after the tuberculin itijectio7i. 



non-reacting animals after six months or a year has passed in 

 order to find any case that might have been infected, but in 

 which the disease had not begun to develop, at the time of the 

 first test. 



REFERENCES. 



1. Adami. On the significance of bovine tuberculosis and its erad- 

 ication and prevention in Canada. Canadian four, of Jledicine and 

 Surgery. Dec. 1899 



2. Curtice The detection of tuberculosis in cattle. Annual Re- 

 port, Bureau of Animal Industry, U. S. Dept. Agric. 1S95-96. 



3. Koch. The etiology of tuberculosis. Mitt, aus dem. Kaiserl. 

 Gesundheitsamte. Vol. II. 1S84. Translated in Vol. CXV. New 

 Sydenham Society-. 



4. Koch. The combating of tuberculosis in the light of the exper- 

 ience that has been gained in the successful combating of other infec- 

 tious diseases. Am. Vet. Review. Vol. XXV. No. 6^ Sept. 1901. 



