Hemorrhagic Septicemia. 10T 



whose herds are affected. In 1907, 1,200,000 doses were 

 sent out. Its use has been very successful. On the 

 large ranges before vaccination was carried out the loss 

 amounted to about 10 per cent, of the annual calf crop. 

 By vaccination the loss has been reduced to less than 

 0.5 per cent. 



HEMORRHAGIC SEPTICEMIA. 



By ' ' septicemia ' ' is meant a disease in which the bac- 

 teria are found especially in the blood. The phrase 

 1 1 blood poisoning" is also used to refer to such diseases. 

 Anthrax may be called a septicemic disease for the organ- 

 isms are found in every drop of blood. Hemorrhagic 

 septicemia is a type of blood-poisoning which is charac- 

 terized by hemorrhages in various parts of the body. . 

 By a hemorrhage is meant the passage of the blood out of 

 the blood vessels into the tissue. 



This disease is found in all parts of the world. In our 

 own country it occurs most frequently in the upper Mis- 

 sissippi valley. In Europe it has caused great losses, 

 among the wild animals, deer and wild-boar. 



The way in Avhich it is introduced into a herd is un- 

 known, as well as its passage from one animal to another. 

 The normal habitat of the bacteria is also unknown. The 

 disease is likely to appear suddenly in a herd, destroy a 

 large part of the same and disappear as mysteriously as 

 it came. 



The rapidity of its appearance and the suddenness 

 with which the animals die, together with the helpless- 

 ness of the owner to contend with it, make it a disease 

 much to be dreaded. Frequently the animals die with- 

 out any previous symptoms of illness. This may lead 

 the owner to think the animals have been poisoned. 



