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AGRICULTURE 



Treatment. No absolute cure has been discovered 

 for hog cholera. Nearly all animals that take the disease 

 usually die. A method of preventing well herds from 

 contracting cholera has, however, been discovered. This 

 is to give well hogs anti-cholera serum ; or, in effect, 

 vaccinate them, as is done with people for smallpox and 

 diphtheria. 



The hog cholera serum is secured by drawing blood from 



I had serum. I wish I had- 



a hog which has first been rendered immune to cholera, 

 either by having had the disease or being given a special 

 treatment for the purpose of immunizing, and then having 

 had cholera germs injected into his veins. Each animal of 

 the herd to be treated is given by hypodermic injection a 

 certain quantity of this serum in accordance with its size. 

 If the treatment is successful, it will immunize the herd 

 against cholera for several weeks. When the serum is 

 given to well herds, a cholera hog is sometimes brought 

 among them, or its carcass even fed them, at the time the 

 treatment is given. This method is thought to make the 

 immunity more certain. 



