HOG CHOLERA— SWINE FEVER 327 



by no means proved in purpura. Further, the serum is ex- 

 pensive. Perhaps some of the good results reported are due 

 less to the potency of the serum than to the fact that when 

 used the resistance of the patient is not being reduced by 

 overdrugging, a common practice before the introduction of 

 modern serum therapy. 



The medicinal treatment is very varied and purely em- 

 pirical. The following suggests some of the possibilities in 

 this regard: 



1. Drugs to increase coagulability of the blood: 



(a) Calcium chlorid with gelatin (gss thrice daily) 



via mouth or rectum. 



(b) Turpentine (gj thrice daily) in pint of milk. 



(c) Adrenalin (1 pro mille, dose 5iv). 



2. Intestinal disinfectants : 



(a) Calomel (gr. xx thrice daily) . 



(b) Ichthyol in form of sodium sulpho-ichthyolate 



(3 iiss thrice daily). 



3. Other treatments: 



(a) Intratracheal injections of Lugol's solution (gj 



intratracheal). 

 (6) Collargol intravenous (gj of a 1.5 per cent, solu- 

 tion in water thrice daily). 

 Tonic powders assist during convalescence, as artificial 

 Carlsbad salts to which some powdered nux vomica is added. 



HOG CHOLERA. SWINE FEVER. 



Definition, — Hog cholera is a contagio-infectious disease due 

 to a filterable virus. It assumes a variety of forms, but 

 primarily is a septicemia with secondary pneumonia, pleuritis, 

 and diphtheritic gastro-enteritis.- Clinically, acute and chronic 

 types are distinguished. 



Occurrence. — The disease is wide-spread, occurring in all 

 countries. It is especially prevalent in the great corn-belt of 

 the United States in which hog-raising is extensively de- 

 veloped. The first recorded outbreak of hog cholera occurred 

 in 1833 in Ohio, into which State it was probably introduced 



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