JOHNE'S DISEASE 



CHAPTER I 



NOMENCLATURE, DEFINITION, HISTORY, AND 

 DISTRIBUTION 



Nomenclature — English. — Johne's disease. Chronic 

 pseudo-tuberculous enteritis. For the condition in 

 sheep, Scrapie or Scrapy (doubtful). Chronic bacterial 

 dysentery (America). 



French. — Entente spezifique chronique des boeufs. 



German. — Die spezifische chronische Enteritis des 

 Rindes. Die chronische pseudotuberkulose Darment- 

 ztindung des Rindes. 



Danish. — Kvaegets kroniske smitsomme Tarmbetaen- 

 delse. Lollandske Syge. 



Swiss. — Kaltbrandigkeit. 



In Great Britain the disease to be described in this 

 book is usually spoken of as ''Johne's disease" — from the 

 name of the discoverer of the acid-fast bacillus present 

 in the lesions of cattle — as being less cumbrous than 

 the more descriptive term, "chronic pseudo-tubercu- 

 lous enteritis," which is commonly used in other 

 countries. The latter name was suggested by Pro- 

 fessor B. Bang in 1906, in which year he showed that 

 the condition was a distinct disease in no way con- 

 nected with tuberculosis; so that it has really more 



I 



