SYMPTOMS IN ACUTE TYPE 179 



(16) Animal stands in a peculiar manner. The back is arched, 

 the flanks drawn up, and the hind legs are crossed over each other. 

 When the animal tries to walk there is a tendency to throw one 

 hind foot in front of and across the other. 



(17) Skin becomes very sensitive to the touch. Animals grunt 

 with pain when touched, even if but very Ughtly. 



(18) The small lymph-glands, which are located just beneath 

 the skin in the fold of the groin, become swollen, softened, and 

 tender. 



(19) Breathing more rapid than normal. Often becomes diffi- 

 cult and noisy in character. 



(20) Pulse at first is rapid and strong. Late in the disease 

 pulse becomes rapid and very feeble. 



(21) Urine becomes very much less in amount than normal. 

 The color of the urine is darker than it should be, and it may even 

 be colored with blood. 



(22) Thumping often becomes a symptom in young pigs and 

 shoats. This may even develop in old hogs, but not nearly so often 

 as in young pigs. 



(23) Death is the outcome in a very large percentage of the 

 cases. 



(24) Duration of the disease in the acute form of cholera is from 

 a few days to two weeks. 



(25) Some cases pass from the acute form into the slow or 

 chronic type. These cases are long drawn out, and may end in 

 recovery in a few cases. Usually those which recover are left 

 in a runty condition. 



Percentage of Deaths. — In considering the chances for recovery 

 of an animal which has been attacked by cholera the outlook is 

 anything but favorable. Farmers everywhere have come to the 

 conclusion that cholera in a herd is pretty near certain to wipe it 

 out. In most outbreaks in the Central and Western States the 

 disease is very severe, and the number of hogs which live through 

 an epidemic is very small. 



Not only is the disease pretty certain to produce death in every 

 animal attacked, but it is also likely to attack almost every hog 

 on the premises. It is only occasionally that we find one or two 

 hogs on a place that are not sick when the disease once gets on the 



