Diseases of the Circulatory System 189 



in this fluid which may have been similar to or identical 

 with those herein recorded. 



On page 201 of Moore's paper he gives the method of differ- 

 entiating the two bacteria. This is, of course, dependent on 

 microscopic examination and cultural tests. A full descrip- 

 tion of Bacterium sanguinarimn is given by Moore on pages 

 188-191 of the paper cited above. 



Etiology. — The disease is caused by a non-motile, rod- 

 shaped bacterium (Bacterium sanguinarium) . This bacte- 

 rium causes the disease when injected into the blood or 

 when fed. In a few cases fowls are known to have con- 

 tracted the disease by picking up the droppings of infected 

 fowls. 



Moore says : " This disease of fowls has not been found in 

 flocks where a good sanitary regime has been enforced. It 

 is highly probable that it is a filth disease, being dependent 

 upon unfavorable environments quite as much as the specific 

 organism for the ability to run a rapidly fatal course and of 

 spreading to the entire flock." 



Treatment. — Prevention is the only known treatment. 

 A maintenance of generally sanitary conditions and the 

 avoidance of the introduction of diseased birds are efl^ectual. 

 If the disease appears in the flock separate the diseased birds, 

 disinfect the premises, and place the flock under sanitary 

 conditions. The disease will probably disappear, as it is 

 difficult experimentally to maintain an infection when the 

 birds are kept under sanitary conditions. 



Prognosis. — Diseased birds usually die in from a few 

 hours to two weeks, but they may recover. 



The Sleepy Disease {Apoplectiform septiccemia) 



This parasitic blood disease is apparently rare. 

 Diagnosis. — The most striking symptom is sleepiness. 



