Treatment. Prevention. 279 



cases 1 to 2 repetitions of the injection bring about recovery. 

 (See further under immunization.) 



Medicinal treatment has not given any decided results. In 

 consideration of the supposition that the infection results from 

 the intestinal canal, the administration of disinfectants was 

 tried, but without much benefit. Of such remedies milk of lime, 

 naphthol, iron sulphate, carbolic acid, calomel (2 g.), creolin 

 (2% solution), arsenous acid (0.2 g.), and formalin milk 

 (%-%%) have been tried. According to observations such a 

 treatment could be only considered for the purpose of protecting 

 if possible healthy animals from the infection. (The carbolic 

 acid enemas recommended by Trevisan, 800-1500 g. of a. 0.5% 

 solution twice daily, has also been found effective in several 

 cases by Kolisch). 



Some authors recommended the intravenous or subcuta- 

 neous injection of antiseptics ; thus Marenghi advised corrosive 

 sublimate (1 part corrosive sublimate, 3 parts salt, 1000 parts 

 water ; 0.5 to 2 g. of this injected into the auricular vein) ; Hajnal 

 suggests lysol (subcutaneous injection of 5 g. of a 20% alcoholic 

 solution) and also antipyrin; Revesz chinosol (3 cc. of a 2% 

 solution subcutaneously). Tha effectiveness of these treatments 

 however has not yet been confirmed by other observers. 



It is essential to place the patients in a clean airy place, 

 and they should be given easily digestible feed; if the clinical 

 manifestations indicate a severe infection the early slaughter 

 of the animal should be recommended. 



Prevention. Herds which are free from the disease should 

 be protected as much as possible from infection. Animals just 

 purchased should be kept isolated for at least three weeks. In 

 large herds infection of the animals is not infrequently avoided 

 by preventing the contact of the herd with strange hogs, espe- 

 cially with those belonging to the farm hands, as well as by 

 keeping them from strange pastures and highways. Cleanli- 

 ness of the piggeries and their 'surroundings, as well as peri- 

 odical disinfection aid considerably in maintaining the health 

 of the hogs. 



If the' disease has already appeared, the affected animals 

 should be slaughtered or left in the infected locality, while the 

 healthy hogs should if possible be divided into small groups, 

 and driven to uninfected places. Should new cases develop in 

 these parts the procedure should be repeated, and the infected 

 pasture should always be avoided. If the disease has appeared 

 in the public pasture, and if it is not possible to remove the^ 

 remaining healthy animals to a clean pasture, the spread of the 

 disease may be prevented by subjecting the animals to a con- 

 tinuous stabling, for at least two weeks. Of course the premises 

 should be placed under veterinary supervision, and where the 

 disease appears the contagion should be destroyed rapidly by 

 early slaughter of the affected animals and thorough disinfec- 

 tion of the stables. 



