360 DISEASES LOCALIZED IN CERTAIN ORGANS 



Symptoms. — From a clinical standpoint it is useful to 

 classify the cases in two types: (a) regular strangles, and (b) 

 irregular ("bastard") strangles. 



Cases of regular strangles are those which take a relatively 

 rapid and benign course, while those spoken of as irregular 

 have a protracted course or suffer threatening complications 

 or sequelae. The period of incubation is from one to eight 

 days, usually three or four days. The symptoms of the first 

 type are : Cough from an affection of the larynx or bronchi. 

 The cough may persist a week or two after the other symp- 

 toms have subsided. 



Nasal Discharge. — At first the discharge is watery but soon 

 becomes mucopurulent. It is usually viscid and copious. If 

 dysphagia is present, food, water or saliva are mixed with 

 it. The discharge usually lasts eight to fourteen days, 

 gradually becoming less. 



Fever. — The temperature is usually elevated in the begin- 

 ning of the disease to 102.5° to 104.8° F. Other symptoms of 

 fever such as languor, lowered head, disinclination to move, 

 rough hair coat and sometimes chill are noted. When the 

 abscesses are evacuated the temperature drops. 



Swelling of the Lymph Glands. — Concomitant with the 

 catarrhal symptoms a swelling appears and usually in the 

 intermaxillary space. In most cases the swelling is edema- 

 tous, hot, painful and fills the space between the jaws, and 

 tends to suppurate, becoming "ripe" in four to eight days. 

 In other cases, notably in older horses, and in patients which 

 have suffered previous attacks of strangles the swelling is not 

 marked and does not lead to abscess. Commonly the abscess 

 opens spontaneously in six to ten days.' 



Dysphagia. — From the attending pharyngitis the patient 

 will hold the head extended and through the nostrils water, 

 saliva or even solid food particles are discharged. From the 

 mouth saliva drools. The appetite is more or less impaired, 

 depending on the severity of the attack. The patient will 

 often refuse concentrates (oats, corn) but eat some hay or 

 grass. The thirst is not increased. 



The Respirations. — If the disease is confined largely to the 

 nasal mucosa, the respirations remain about normal. When 



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