RABIES. 547 



indurated as the result of fibrous-tissue formation, due to the inflam- 

 mation present. On the baconlike cut surface suppurative areas and 

 granulating sores may be noticed of various sizes, also enlarged 

 lymph vessels filled with clotted lymph mixed with pus. The neigh- 

 boring lymph glands are usually enlarged and frequently contain 

 suppurating foci. Rarely the internal organs may show metastatic 

 abscesses. 



Diagnosis. — The diagnosis is based on the characteristic appear- 

 ance of the ulcerations, which show exuberant granulation of a bright 

 red color, inverted edges, and a thick, creamy, glutinous discharge. 

 These manifestations differentiate the disease from glanders, in which 

 the ulcers are crater like, do contain exuberent granulations, and the 

 discharge is of a viscous, oily character. The submaxillary and other 

 nodes as well as the corded lymphatics in glanders are more firmly at- 

 tached to the adjacent tissues, and are therefore less movable. In 

 some chronic cases of mycotic lymphangitis, however, the lesions 

 may closely resemble those of farcy, and in these cases the microscop- 

 ical examination of the pus will disclose the nature of the affection. 

 In the pus the saccharomyces can be easily seen in the unstained speci- 

 men and is recognized by its size, shape, and highly refractory double 

 outline. Furthermore, the injection of mallein in cases of mycotic 

 lymphangitis will be attended with negative results. 



Treatment. — Treatment consists at the onset of the disease in entire 

 extirpation of the nodules, lymph vessels, and neighboring lymph 

 glands in case the lesions are localized. In cases where the nodules 

 have formed abscesses, their opening is recommended, followed by the 

 application of the actual cautery or a 1 to 250 solution of bichlorid of 

 mercury. It must be borne in mind that the organism is highly re- 

 sistant to almost every antiseptic, and the best results will be ob- 

 tained from the application of a solution of a strong antiseptic fol- 

 lowing the opening of the lesions. 



In the most favorable cases, recovery results in from five to seven 

 weeks ; as a rule, however, it requires several months. 



In order to prevent the spreading of the disease the affected animals 

 should be isolated, the products of the disease should be destroyed, 

 and the stable should be disinfected with very strong liquid dis- 

 infectants in consideration of the great resistance o^the causative 

 organism. 



RABIES, HYDROPHOBIA, OR MADNESS. 



Rabies is a contagious disease, which is usually transmitted by a 



bite and by the introduction of a virus contained in the saliva of an 



affected animal. It may, however, be transmitted in other ways. It 



'is characterized' by symptoms of aberration of the nervous system 



and invariably terminates fatally. It is accompanied by lesions, in- 



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