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, 

 by means of the tuberculin test, it is necessary to retest the 



IE 



Fig. 36. Tcinperalure curve of a htbcriulons cow fof 4S hours. The line 

 A. A. shows temperature for 2.^ Iwurs prccediiis; the injection of tuberculin 

 zchich was injected at q a. m., March 16 : b. b. b. shows the temperature jor the 

 2 f hours after the tuberculin injection. 



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

 order to iind an\- 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 Medicine and 

 Surgery. Dec. 1899 



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

 port, Bureau of Animal Industry, U. S. Dept. Agric. 1895-96. 



^. Koch. The etiologv of tuberculosis. JPitt. aus dem. Kaiserl. 

 Gesundheilsamte. Vol. II". ' 1884. Translated in Vol. CXV. New 

 Svdenham 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. 



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