76 Dairy Bacteriology. 



ing from an udder in which the inflammation is pro- 

 duced by bacteria. 



Inflammation caused by the invasion of the udder 

 with specific bacteria is usually of greater severity, the 

 entire gland often becoming involved. The secretion of 

 milk may cease and the function of the diseased quar- 

 ters may never be restored. The milk in the less severe 

 cases may not be abnormal in appearance, but with 

 increasing severity, the nature of the milk changes, 

 until it may be a watery liquid. The milk of any ani- 

 mal suffering from any form of garget should be re- 

 jected, as it may cause trouble, especially in children. 

 There is some reason to believe that organisms coming 

 from cases of garget have been responsible for the ex- 

 tensive outbreaks of septic sore throat that have oc- 

 curred in some parts of the country. 



The milk of animals suffering from indigestion, diar- 

 rhea, abscesses on any part of the body, as from those 

 which have retained the afterbirth should be likewise 

 rejected. In short only the milk of healthy animals 

 should be used for human food; that from any animal 

 suffering from any disease or which is receiving medi- 

 cal treatment should not be so used. 



Typhoid fever. The most important disease germ, 

 distributed through the medium of milk, that is unable 

 to produce a. diseased condition in the cow is the organ- 

 ism of typhoid fever. This malady is an intestinal af- 

 fliction of man, and the germ causing the same is found 

 abundantly in the dejecta, both solid and liquid, as 

 well as in the blood in certain stages of the disease. 

 While the causal organism does not leave the body 

 through the expired air, it is found abundantly in both 

 the urine and feces. Therefore, the dejecta, and any 



