INFECTIOUS DISEASES OF THE THROAT. 



Infectious throat diseases. Parasites, Leeches. CEstrus larva. Chronic 

 sore throat. Mechanical removal. 



Infections are in many respects the most serious affections of this 

 . region but their consideration must be sought under strangles, 

 distemper, diphtheria, anthrax, actinomycosis, tuberculosis, 

 glanders, etc. 



PARASITBS OF THE THROAT. 



Leeches. These taken in with the water will sometimes fasten 

 themselves on the walls of the pharnyx or even on the lips of the 

 larnyx, producing cough, sore throat, difficulty of swallowing, 

 bleeding from the nose (or mouth), or dyspnoea. They are to be 

 removed as recommended above under parasites of the nasal 

 chambers. 



CEstrus Larva.. Bots. In horses and mules the larva of 

 the oestrus sometimes attaches itself to the mucous membrane of the 

 pharynx or even of the larynx producing chronic irritation, cough 

 and even dyspnoea. A chronic sore throat with nasal discharge, 

 occurring in autumn or winter, in the absence of fever or constitu- 

 tional disorder may be found to depend on these parasites and to 

 recover when these have been removed bv the hand. 



GUTTUROMYCOSIS OF SOLIPEDES. 



Aspergillus. Complications, ulceration, lesions of adjoining parts, food 

 in lungs, hepatization, gangrene. Treatment, by incision, sulphur dioxide, 

 iodine. 



Rivolta and Bassi have found in the guttural pouches of horses 

 and a mule, an advancing ulceration of the mucosa partially cov- 

 ered with crusts composed largely of the mycelium, conidia and 

 spores of Aspergillus or a closely allied fungus. In the mule the 

 ulcer had opened into the carotid artery causing a profuse epis- 

 taxis. In the three horses there was dysphagia, and the food, 

 descending to the lungs, had caused pulmonary hepatization and 

 gangrene. The description of the ulcers led Raillet to infer the 

 existence of glanders and that the presence of the aspergillus was 

 accidental, rather than a causative factor. In parallel cases the 

 opening of the guttural pouch and injection with sulphurous acid 

 solution or dilute solution of iodine would be appropriate treat- 

 ment. 



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