PATHOGENIC BACTERIA. 



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marked in a specific way which sometimes form pus, as the 

 bacilli of diphtheria, tuberculosis, glanders and typhoid fever. 

 Frequently two or more species of pyogenic bacteria will be 

 found associated. 



The table below, quoted from Dowd, shows the frequency 

 of the occurrence of various pyogenic bacteria in 135 cases of 

 different types of suppuration. 



The condition of the animal's tissues is of great importance 

 in determining whether or not suppuration will occur when 

 they are exposed to infection. It will be seen that we are re- 

 peatedly subjected to infection with pyogenic bacteria, but that 



