OTHER GERM DISEASES AMONG ANIMALS 307 
oculation, and from the time that Pasteur pointed out the method, 
hundreds of thousands of animals have been thus inoculated and 
protected. But the protection is not found to be very lasting, 
and animals must be inoculated about once a year to be thoroughly 
safe from the disease. This, of course, reduces the value of the 
inoculation, and confines it to localities where, for special reasons, 
the disease is quite common. It also explains why the method 
is not so widely in use now as at first; but, nevertheless, large 
amounts of the inoculating material have been used in this country 
as well as elsewhere, and it is thought that immense losses have 
been prevented by this means since its discovery by Pasteur. 
OTHER GERM DISEASES AMONG ANIMALS 
No other diseases among animals have acquired so much 
Interest as tuberculosis and anthrax, although several others are 
known to be produced by microorganisms and are of considerable 
importance to agriculture. Only a brief mention of these is 
possible, but the following list includes all of the important 
diseases of domesticated animals, that have been proved to be 
caused by microscopic parasites. 
Swine Plague, Fowl Cholera, Rabbit Septicemia, Rinder- 
seuche, Wildseuche (B. pleurosepticus)—These names are ap- 
plied to a variety of affections of animals, but they all appear 
to be essentially the same thing. The cause is a bacterium which 
was first identified by Pasteur as the cause of fowl cholera and 
later identified as the inciting agent in all these diseases. They 
are all contagious and often produce considerable havoc among 
domestic animals. The names given indicate the variety of 
animals attacked. Rinderseuche is the name given when it 
attacks cattle, and Wildseuche when it attacks deer; septic pleuro- 
pneumonia and pneumoenteritis are also names applied to it. 
The bacterium causing all these diseases is a short rod, so short 
as sometimes to be called a Micrococcus. The cultures obtained 
from different animals have been given different names, B. bovi- 
