SWINE ERYSIPELAS I 23 



" Inasmuch as one possible method of introducing the 

 disease is through purchases, it will always be necessary for 

 purchasers to enquire into the history of the flock from which 

 additions are to be made, and especially to examine into the 

 condition of the fowls. It is better in any case to keep new 

 purchases by themselves for some weeks or until it is apparent 

 that they are healthy." 



REFERENCES. 



1. Curtice. Fowl typhoid. Bulletin Sj. Agr. Exp. Station of 

 the R. I. College of Agric. and Mech. Arts, 1902. 



2. Dawson. Infectious leukemia. Annual Report of the Bureau 

 of Animal Industry, U. S. Depl. Agric., 1S9S. 



3 MooRE. A study of a bacillus obtained from three outbreaks of 

 fowl cholera. Bulletin No. S, U. S. Bureau of Animal Industry, 1895. 



4. Moore. Infectious leukemia in fowls-A bacterial disease 

 frequently mistaken for fowl cholera. Annual Report of the Bureau 

 of Animal Industry, 1895-96. 



SWINK ERYSIPELAS. 

 Sy7ionyms. Red fever of swine ; roitgef ; Rotlazij. 

 ^ 108. Characterization. This disease, peculiar to 

 swine, is determined by a rise of temperature, cerebral distur- 

 bances and pronounced reddening of areas of the skin. It is 

 a disease of adult life. It is stated that pigs are rarely attacked 

 under three months or over three years of age. Lydtm and 

 Schottelius found some differences in the degree of suscepti- 

 bility of certain breeds of swine. The common country pig 

 was least susceptible. 



§ 109. History. This disease has been known in 

 Europe for many years. Smith found a bacterium in rabbits 

 inoculated with the organs of pigs that had died of an unde- 

 termined disease in Minnesota, which was either the bacterium 

 of swine erysipelas or of mouse septicemia. The latter organ- 

 ism had been recorded on two previous occasions from pigs in 

 this country. 



