342 DOG DISTEMPER 



which renders the cornea, to a considerable extent, opaque and 

 gives it the appearance of ground glass. These extensive 

 opacities sometimes develop in a comparatively short time. 

 This affection of the cornea, the so called "distemper of the 

 eyes" is frequently the only evidence of distemper with the 

 exception of the high temperature. 



There may be vomiting, well marked congestion and dry- 

 ness of the oral mucosa. There is usually constipation at first, 

 but later a diarrhoea in which the feces, as a rule, are very 

 foetid, often slimy and frothy. Hemorrhagic intestinal catarrah 

 sometimes exists. The urine frequently contains albumin, 

 especiall)' when the patient is weak or in an advanced stage of 

 the disease, biliary pigments but rarely hemoglobin. 



The nasal discharge is serous at first, mucous or purulent 

 later on. It is followed bj' sneezing, panting and nasal pruri- 

 tis, which causes the animal to rub its nose with its paws. 

 The pus discharge from both nostrils may be very copious. It 

 is sometimes mixed with streaks of blood, and varies in color 

 from a dirty j'ellow to a dirty green. Later, it ma}' become foetid 

 and even watery. Ulcers may appear on the nasal mucosa. 



Laryngeal catarrh usually accompanies the nasal catarrh 

 and manifests itself by a cough, which comes on in paroxysms 

 and which is at first hoarse and dry, but later moist and 

 accompanied by a discharge of phlegm. The cough excites 

 vomiting. The catarrh spreads from the larynx to the trachea 

 and bronchi. The resulting bronchitis is followed by an in- 

 creased rate of breathing and manifests itself by a cough and 

 hoarse, sharp, vesicular, respirator^' murmurs. Frequenth' 

 there is a catarrh of the mucous membrane of the smaller 

 bronchi. There may l^e difficulty in breathing and a feeble 

 cough which the patients try to suppress. The cough may be 

 excited by percussion of the thoracic walls, by the animals 

 getting up and b}- their being taken out of their kennels. 

 Young and weak animals that cannot remove the accumulated 

 phlegm from the bronchi by coughing become affected with 

 •catarrhal pneumonia. The pneumonia can be recognized b^' 

 the increase in temperature. 



Distemper often begins, especially in anaemic animals, with 



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