INFECTIOUS DISEASES I4I 



are more excavated and less elevated and button like. 

 The peritoneum is frequently inflamed. 



Preventive Treatment.— The preventive meas- 

 ures in swine plague are along somewhat the same 

 lines as in hog cholera. However, the most dan- 

 gerous source of infection is from animals coming 

 from diseased herds, or from healthy herds com- 

 ing in contact, either directly or indirectly, with 

 the disease at stock shows, fairs, etc. Unsanitary 

 conditions seem to play a less important part in 

 the spread of this disease than in hog cholera. 



Hygienic Measures Necessary in the Treatment 

 of Swine Plague. — The swine plague germ has 

 less vitality than the hog cholera germ, hence it is 

 more readily destroyed. It is largely due to this 

 fact that the disease can be controlled. Cleaning 

 and disinfecting the pens, hog houses, etc., and the 

 separation of the sick . from the well animals are 

 the necessary measures in the treatment and control 

 of this disease. In general the hygenic treatment dif- 

 fers but little from that recommended for hog cholera. 



Serum Therapy and Vaccination. — Serums and 

 so-called antitoxines have proven unsatisfactory in 

 the treatment of swine plague. The same is true 

 of vaccines. 



Medicinal Treatment. — The medicinal treatment 

 has always been along the same line as in hog 

 cholera, and has not given satisfactory results. 

 This line of treatment should not be permitted to 

 draw the attention from sounder and more eco- 



