286 OTHER GERM DISEASES. 
to have swine plague and the hog cholera together in the sarm 
animal. The disease sometimes results in very serious losses 
A herd of swine may be attacked by such a violent epidemic tha 
90 per cent, of the animals succumb to the infection. After th 
death of the animals the bacilli which produced the disease ar 
found irball of the organs, but especially in the spleen. The diseas 
occurs in an acute form, which runs its course with excessive rapidity 
producing death in twenty-four hours, and in chronic form, whicl 
has a slower course, lasting from two to four weeks before finall 
resulting in the death of the animal. The organism which produce 
the disease is named B. suipestifer (or B. cholera suis), and is ver 
easily cultivated by ordinary methods in the laboratory. It i 
capable of producing the disease, not only in the swine, but i] 
rabbits, guinea-pigs, mice, and some other animals; but as a spon 
taneous affection it is found in the hog only. 
Glanders. Farcy. Rotzbacillus (B. mallei). This disease 
well known among agriculturists, occurs not infrequently as 
normal infection in the horse and in the ass. It is characterize 
by the appearance of ulcers in the nasal membranes, by enlarge* 
submaxillary lymphatics, which may turn into open dischargin 
ulcers. Later the lymphatics of the whole body may becom 
tumor-like swellings. Other parts of the body may eventuall 
be affected. The secretions from the various ulcers are found to b 
decidedly infectious, and it is through these ulcers that the diseas 
is commonly distributed. It occurs in an acute form and in 
chronic form; the latter, chiefly in the skin, receiving the nam 
of farcy, the former, chiefly in the lungs and nasal passages, mor 
commonly known as glanders. It occurs spontaneously only i 
horses and asses, and causes great losses in nearly all localities. ] 
may occur by accidental or artificial infection in many other animal* 
It occurs occasionally in men who have become accidentally inoc 
ulated in the treatment of horses suffering from the disease, an 
when it does occur in man it is an extremely fatal disease, almoE 
always resulting in death. 
The bacillus which produces the disease is named B. malle, 
It is a short stationary rod which lends itself readily to bacteriologies 
