170 THE MORE CHRONIC INFECTIOUS DISEASES 



is a very infectious disease, and the bacilli are per- 

 tinacious. 



Morphology and General Characteristics. The glan- 

 ders bacilli are straight or slightly curved rods, usually 

 single, but also in pairs or short filaments, and measure 

 from YOTOT to 5 <rV<i inch in length and from TUnVdii 

 to suTrdTr mcn m width. They stain with reasonable 

 ease. They grow at 37 C. or 98 F. very much better 



FIG. 46. Glanders bacilli." Agar culture. X 1100 diameters. 

 (Park.) 



in the presence of oxygen than in its absence. They 

 do not form spores nor are they motile. They are 

 killed at 55 C. or 130 F. in ten minutes; by 1 to 

 1000 bichloride or 1 to 100 carbolic acid in ten minutes. 

 After drying they may live for ten days, but do not 

 live long in nature outside the animal body. They 

 are easily grown upon most of the laboratory food- 

 stuffs. Most of the lower animals are susceptible to 

 glanders and it is of some importance in menageries. 



