INFECTIOUS DISEASES 



187 



In the diagnosis the history of the outbreak, and par- 

 ticularly the distance from known cases of cholera and 

 whether or not any swine have recently been introduced, 

 must always be taken into consideration. Finally, it 



Fig. 16. HEART SHOWING TISSUE HEMORRHAGES DUE TO 



HOG CHOLERA. 

 B. Hyperemic areas. 



