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, tuber- 

 culosis, glanders, etc. 



PARASITES OF THE THROAT. 



Leeches. These taken in with the water will sometimes 

 fasten themselves on the walls of the pharynx or even on the 

 lips of the larynx, producing cough, sore throat, difficulty of 

 swallowing, bleeding from the nose (or mouth) or dyspncea. 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 CEstrus 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 dis- 

 charge, occurring in autumn or winter, in the absence of fever 

 or constitutional disorder may be found to depend on these para- 

 sites and to recover when these have been removed by the hand. 



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