Symptoms. 



373 



nasal catarrh appear. The mucous membrane of the nose is 

 first highly reddened, warm, and dry, soon the secretion becomes 

 profuse, consisting at first of a clear or only slightly turbid 

 fluid, later it is tenacious, after 3 to 4 days it is muco-purulent, 

 and finally purulent (rhinitis blenorrhoica). At this stage the 

 discharge is profuse, and flows in great quantities from the 

 nasal openings over the upper lips. In colts the discharge 

 is usually crumbly, less sticky, and the patients expel it in great 

 balls during coughing or blowing. The animals cough much, 

 and frequently manifest more or less pronounced symptoms 

 of an initial pharyngitis; in this stage an acute catarrh of the 

 buccal mucous membrane and the conjunctiva may also be ob- 

 served. 



In rare cases the mucous glands of the nasal mucous membrane 

 are swollen to hemp-seed sized hard nodules, or small vesicles develop 

 on the membrane, whicli later sni)pnrate (on the basis of such experi- 



Fig. 62. Strangles. Commencing swelling of the submaxillary lymph glands. 



ences Trasbot incorrectly considered strangles as a disease identical 

 with, or at least related to pox). Still less freciuently the mucous mem- 

 brane may reveal urticaria-like, tlat plaques, which are the result of 

 serous infiltrations of the submucous connective tissue. According to 

 Rabe the streptococcus may also cause an extensive, ulcerating inflam- 

 mation of the nasal mucous membrane, which can only be distinguished 

 from ulcers of glanders by their vivid, reddened borders, and similarly 

 reddened base, also by the numerous streptococci which are found in 

 the discharge. Peters observed in a colt a necrosis of the bony parts 

 of the nose as the result of an infection with strangles. 



In the great majority of cases an acute swelling of the 

 submaxillary lymph glands may be noted with the first appear- 

 ance of the catarrhal symptoms (Fig. 62). Tlie lobular struc- 



