380 The Diseases of Animals 
1902, being first discovered in the New England states, 
where it has been confined by rigid quarantine restric- 
tions, prescribed by the general government and the 
various states. A vigorous and apparently successful 
effort is being made to stamp out the disease by 
quarantine. Destruction of affected animals and thor- 
ough disinfection,—these are the only methods that 
have ever been effective in dealing with this disease. 
Diseased carcasses should be buried deep or burned. 
Hides or wool should not be saved, nor should diseased 
eareasses or milk from a diseased animal be fed to other 
animals. Suspected cases should be at once reported. 
TUBERCULOSIS 
Tuberculosis is a communicable disease that may 
attack any of the domestic animals, though it is found 
mostly among cattle. In man, tuberculosis is commonly 
known as consumption, and is one of the most serious 
diseases that threaten the human race. 
The cause of tuberculosis is a germ or bacterium 
known as Bacillus tuberculosis. The germs are always 
present in the system of the animal having the disease. 
Any condition which weakens the animal’s system 
lessens its power of resistance to this disease. As a 
result of the drain upon the system due to the produc- 
tion of large quantities of milk, tuberculosis is espe- 
cially prevalent among dairy cows, and is one of the 
most serious diseases that dairymen have to contend 
with. It is rare among cattle native to the ranges of 
the West. 
