Mortality. 



In localities where the disease appears the first time the death rate 

 will reach from 80 to 95 per cent. In isolated instances 100 per cent 

 of them die. 



In communities where cholera is more or less prevalent from year 

 to year the death rate may he as low as 30 to 50 per cent. The disease 

 is more fatal to young hogs and those kept in unsanitary surroundings. 



If any considerable number of hogs die on a farm or in a com- 

 munity from contagious or infectious disease, we feel safe in suggest- 

 ing hog cholera as the disease causing the losses. Cholera is the only 

 contagious disease of swine now prevalent in Tennessee. 



Present State Regulations. 



All swine owners should acquaint themselves with State regula- 

 tions pertaining to hog cholera, which are as follows: 



"Sec. 30. That all public stock yards in the State 

 are hereby placed in quarantine — as regards the 

 handling of swine — and all persons, firms or corpora- 

 tions are prohibited from removing swine therefrcm 

 for any purpose other than immediate slaughter. 



"Sec. 31. Hogs infected with or exposed to chol- 

 era shall not run at large or be driven on ranges, 

 commons or public roads; such hogs must be confined 

 in strict quarantine. Carcasses of hogs that have died 

 of cholera must be sent to a rendering tank, or com- 

 pletely burned on the premises." 



The statutes of Tennessee prescribe that carcasses of hogs 

 which die from cholera shall be BURNED. 



Period of Incubation. 



The period of incubation, which means time from actually contract- 

 ing the disease to time first symptoms or evidence of sickness appears, 

 varies from four days to four weeks, depending upon the suscepti- 

 bility of the individual animal and the virulence and manner of the 

 infection. 



An active or acute attack of sickness indicates that the period of 

 incubation was short and the infection highly virulent. A chronic tvpe 

 of cholera is indicative of a long incubation period and an infection 

 low in vitality. The period is usually from -even to fourteen days. 



Sym ptoms. 



Since cholera OCCUrs in three different firms — acute, subacute and 

 chronic the nature and character of the symptoms naturally van) 



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