VACCINE-THERAPY 187 



gives way to diarrhoea. The fasces often contain blood 

 and mucus. 



Vomition may be present, the vomit often containing 

 mucus, bile, or even blood. 



Acute purulent inflammation of the conjunctiva is also 

 commonly seen, whilst the temperature is usually high. 



In the abdominal form the animal isolates itself, refuses 

 its food, lies about, usually hidden in a dark corner. 



The bowels, constipated at first, become replaced with 

 diarrhoea, the fasces being very foetid. Emaciation rapidly 

 takes place ; vomition as a symptom may be present, and 

 the vomit is often mixed with bile. 



The mucosas of the mouth and pharynx are inflamed, and 

 are often covered with a tenacious exudate of a greyish- 

 yellow colour. Invariably there is difficulty in deglutition, 

 and sometimes respiration. The temperature is always 

 elevated and the pulse quickened. 



The disease may run an acute and rapid course, termi- 

 nating fatally in a few days. In other cases it may take 

 on an insidious form, and recovery follow in two or three 

 weeks. Such subjects, however, seldom become valuable for 

 commercial purposes. 



In the pulmonary form the disease is characterized in 

 most cases by symptoms indicative of acute pneumonia. 

 The respirations are hurried and laboured, and sometimes 

 oral, and in hot weather, if the animal is exerted, it will 

 roll over from sheer exhaustion and a sense of suffocation. . 



To increase the chest capacity and facilitate respiration, 

 the animal will often sit on its haunches. The temperature 

 is usually very high. There is always present a short, 

 husky cough, and a slimy discharge may be noticed coming 

 from the nostrils. 



Discoloration of patches of the skin may be present. 

 Emaciation may be very rapid, death soon taking place 

 from exhaustion. On the other hand, the disease may take 

 on a chronic phase. The cough usually persists, with 

 somewhat laboured respiration. 



