CHAPTER VII. 

 SWINE-PLAGUE. 



BACILLUS SUISEPTICUS (LOFFLER AND SCHUTZ). 



General Characteristics. A non-motile, non-flagellated, non- 

 sporogenous, non-liquefying, non-chromogenic, aerobic and optionally 

 anaerobic bacillus, pathogenic for hogs and many other animals, stain- 

 ing by the ordinary methods, but not by Gram's method. It produces 

 a slight acidity in milk, but does not coagulate it. 



The bacillus of swine-plague, or Bacillus suisepticus of 

 Loffler and Schiitz * and Salmon and Smith, f but slightly 

 resembles the bacillus of hog-cholera, though it was formerly 



Fig. 159. Bacillus of swine-plague (from photograph by E. A. de 



Schweinitz). 



confounded with it and at one time thought to be identical. 

 The species have sufficient well-marked characteristics, 

 however, to make their differentiation easy (Fig. 159). 

 Swine-plague is a rather common and exceedingly fatal 



* "Arbeiten aus dem kaiserlichen Gesundheitsamte," I. 

 t "Zeitschrift fur Hygiene," x. 



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