DISEASES OF ANIMALS TRANSMISSIBLE TO MAN. 
179 
other animals may become infected. It is a very active disease 
and soon spreads over large areas of country. The animals are 
feverish, and in from three to five days the mucous membrane 
of the mouth and the integument between the hoofs of cattle 
swell and little grayish vesicles develop on the edges of the 
tongue, the lips and gums, and in the cow vesicles appear upon 
udder and teats. The milk may become of a muddy consistency^ 
It is not uncommon for this disease to be transmitted to 
man through direct contact, or to children from drinking the 
milk, or even through butter or cheese made from the milk 
from apt ho us cows. 
The consumption of the meat of cattle that are suffering 
from measles of the ox, a condition caused by the encysting of 
the bowel, forms of the taenia saginata in the muscles and other 
portions of the body, is the source from which the most com¬ 
mon form of the tapeworm, the taenia saganita, of man comes. 
A measly hog or the disease known as cysticercus cellulosse,. 
is infested with the cyst form of the taenia solium. Eating the 
flesh of a pig so infected will produce the adult taenia solium in 
man, which is especially dangerous because of the liability of 
man to auto infection, and thus contracting cysticercus cellu- 
losae himself. 
Echinococcus of man is a disease in which the larvae of the 
taenia echinococcus becomes encysted in various tissues, prin¬ 
cipally the larval. The taenia echinococcus is a tapeworm 
infesting the dog, and the eggs are swallowed by man in drink¬ 
ing water and by other means. The disease in man is not 
amenable to treatment and eventually proves fatal. Cattle and 
other animals suffer occasionally from echinococcus in this 
form. Taenia cucumirena sometimes gain access to the intestines 
of man through swallowing the dog flea or louse. It exists in them 
in its larval form. Bothreocepholus later exists in the larval stage 
in the muscles of the pike and other fish and sometimes exists 
in the bowels of man due to ingestion of fish containing the 
larvae. It is the largest tapeworm which infests man. 
Trichinosis is a disease of man caused by the ingestion of 
