HOG CHOLEKA 65 



and serum are stocked by the various institutes for 

 antirabic vaccination. Besides the Paris Pasteur 

 Institute, there exist institutes at Lille, Marseilles, 

 Montpellier, Lyons, and Bordeaux in France, at 

 Berlin, Vienna, Buda-Pest, and Kasauli in India. 



In cases of bites by rabid animals, resource should 

 be had as soon as possible to antirabic inoculation. 

 It is important that this should not be delayed. 

 There is practically no danger in the procedure. 

 Many valuable animals can be saved by this treat- 

 ment instead of being destroyed, as has been formerly 

 done. 



Hog" Cholera (Swine Fever). — A very common 

 disease of swine ; in the United Kingdom it is one 

 of the scheduled diseases. 



Etiology. — An ultra-visible virus. Until the year 

 1904 this disease was thought to be caused by the 

 B. cliolercE suis. However, in the above-mentioned year 

 Schweinitz and Dorset proved the disease to be due 

 to a filterable virus. The B. cholerce siiis is probably 

 a secondary invader. In this country treatment of 

 the disease is not permitted, and, for some reason 

 unknown to me, prophylactic measures are not 

 adopted either. It has been conclusively proved by 

 the great majority of American veterinarians that in 

 young animals an active immunity to this disease 

 can be estabHshed. Animals that have recovered 

 from an attack of the disease are thereafter immune, 



and it has been shown that their blood has some 



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