Bladder. -Hemorrhagic spots and congested areas on lining mem- 

 brane of the bladder are by no means infrequent post-mortem lesions 



of hog cholera. 



The kidney, lung, and gland lesions are to be expected in most all 

 well-developed cases of acute and subacute hog cholera. These post- 

 mortem lesions greatly resemble the post-mortem lesions found hi 

 typhoid fever of man. 



The following tabulation of post-mortem lesions was recently form- 

 ulated by Dr. Geo. H. Roberts, and since it so nearly conforms to 

 our own findings we herewith incorporate it for the benefit of those 

 who are called upon to diagnose hog cholera: 



"Conditions found by post-mortem examination of ioo 

 carcasses of hogs which have had cholera within a period of 

 from six to fourteen days from infection. The writer believes 

 that these cases form a fairly representative list typical of 

 the conditions that may be expected in ordinary post-mortem 

 for acute hog cholera : 



Diarrhea present in 23' , of cases 



Skin hemorrhagic in 26% of cases 



Intestines hemorrhagic in ioo'v of cases 



Lymph glands hemorrhagic and enlarged in. .100% of cases 

 Kidneys hemorrhagic and petechiated in.... 100% of cases 



Spleen petechiated in ioo r ; of cases 



Spleen enlarged in 2% of cases 



Spleen hemorrhagic in 96% of cases 



Pleural adhesions in 3% of cases 



Bladder hemorrhagic in 27' < of cases 



Lungs showing red hepatization in 13' , of cases 



Lungs showing gray hepatization in 2' ', of cases 



Lungs hemorrhagic in 92% of cases 



I .ungs petechiated in 07% of cases 



Lungs necrotic in 3% of cast - 



1 mIkt diseases present in 3'*' of casi - 



"Average temperature during disease was to6.8 degrees 

 Fahrenheit." 



Danger of Recurrence on L\ri:< ui> Lkkmisi 

 Authorities differ as to length of time required for cholera infec- 

 tion to die out on an infected premise. 1 [owever, it is definitely known 

 that the virus will remain virulent for as long as four months when 

 exposed to drying by ordinary atmospheric conditions. It may be 

 killed much more quickly by exposure to the direcl rays of the sun. 



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