SWINE ERYSIPELAS IO7 



REFERENCES. 



1. Dawson. Infectious leukaemia. Annual Report of the Bureau 

 of Animal Industry, U. S. Dept. A^rie. 1S9S. 



2. Moore. A stud)- of a bacil'lus obtained from three outbreaks of 

 fowl cholera Bulletin No. S, U. S. Bureau of Animal Industry. 1S94. 



3. Moore. Infectious leukaemia in fowls — A bacterial disease 

 frequently mistaken for fowl cholera. Annical Report of the Bureau of 

 Animal Industry. 1S95-6. 



SWIxNE ERYSIPELAS. 



§89. Characterization. This disease, peculiar to swine, 

 is determined by a rise of temperature, cerebral disturbances, 

 and pronounced reddening of areas of the skin. It is a disease 

 of adult life. It is stated that pigs are rarel}' attacked under 

 three months or over three j'ears of age. Lydtin and Schot- 

 telius found some differences in the degree of susceptibility of 

 certain breeds of swine. The common country pig was least 

 susceptible. It is known in France as roitget and in Germany 

 as Rothlaiif. 



§ 90. History. This disease has been known in Europe 

 for many j-ears. It has not been positively identified in the 

 United States. Smith found a bacterium in rabbits inoculated 

 with the organs of pigs that had died of an undetermined disease 

 in Minnesota, which was either the bacterium of swine ery- 

 sipelas or of mouse septicaemia. The latter organism had been 

 recorded on two previous occasions from pigs in this country. 



§ 91. Geographical distribution. Swine erysipelas is 

 an infectious disease which occurs enzootically and in epi- 

 zootics in most of the countries of Europe. Eike anthrax, 

 erysipelas is often stationary. It was formerly restricted in 

 Bavaria to the districts along the Danube, and was entirely 

 unknown in southern Bavaria (Kitt). It is stated that the 

 disease tends to become enzootic chiefly in valleys and low- 

 lying plains which have slow-flowing streams, and heavy, 

 damp, clay soil ; and that sandy and granite soils are compara- 

 tively free from it. It occurs chiefly during the months of 

 July, August and September, although it appears sporadically 

 during the winter months. 



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