CHAPTER X 



GLANDERS, ACTINOMYCOSIS, ANTHRAX 



Glanders is a disease peculiar to the horse, the 

 mule, and the ass, although other domestic animals 

 and the animals in menageries and zoological gardens 

 are sometimes affected. Man is susceptible to the 

 infection of glanders, but the cases are uncommon 

 and usually confined to veterinarians and others 

 caring for horses, who contract the disease by inocu- 

 lation. 



The glanders bacillus was discovered by Loffler in 

 1 882, and is known as Bacillus mallei. It is a small rod 

 with rounded ends, somewhat resembling the tubercle 

 bacillus except that it is uniformly thicker ; it is non- 

 motile and does not form spores. In cultures the 

 B. mallei occur mostly in pairs or very short chains. 

 The bacillus stains with aniline dyes and grows 

 readily upon ordinary culture media, growth being 

 more abundant in subcultures than in the first 

 transfer from the animal tissues. 



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