TREATMENT OF CHOLERA 223 



number of hogs, and there was absolutely no provision made for 

 ventilation or entrance of fresh air and sunlight. 



These animals, too, about midwinter developed a chronic 

 cough, which passed unnoticed for several weeks. Gradually, they 

 began to be noticeably off feed, several developed a diarrhea, and, 

 finally, refused to come out at all at feeding time. One of the 

 animals rapidly became worse and died. 



Postmortem examination in this case revealed swollen, enlarged 

 lymphatic glands, which were almost black in color from being 

 filled with blood. The lymph-glands in the ruffle fat were swollen 

 and full of blood, and when the bowels were opened they were 

 found to be almost one mass of large button-like, elevated ulcers. 

 The ileocecal valve was covered by one large ulcer which extended 

 over the entire surface of the valve. The large bowel was also 

 freely sprinkled with ulcers. The kidneys were but little swollen, 

 but showed a liberal sprinkling with dark red spots. In the thoracic 

 cavity there was considerable evidence of a commencing inflam- 

 mation of the lungs and a few blood-red spots on the surface of 

 the lungs. 



Further investigation revealed the fact that this farmer had 

 had hogs die with cholera in these same lots the previous winter. 

 Some of the infective virus was apparently still present, and this 

 animal had died from a chronic form of cholera. The animals 

 were changed to different quarters and fed with a patent medicine 

 hog-cholera remedy for several weeks. As most of the animals were 

 old sows, the disease did not get much of a foothold. Two more 

 animals died and a number of the sows slunked their pigs. This 

 outbreak was unquestionably brought about simply by the lowered 

 resistance of the animals, due to insanitary sleeping quarters and 

 overcrowding. The hog-cholera germs present were not in an 

 active state, and hence the attack developed was of the mild type. 

 Under proper conditions of fresh air and sunlight, with proper 

 food, the disease would not have been able to get a new start 

 at all. 



As to the efficiency of the patent medicine hog-cholera remedy, 

 it probably had little or nothing to do with checking the outbreak, 

 although the farmer was thoroughly convinced that it was this 

 remedy which did the work. The real cause for the quick ending 



