656 DISEASES OF UNKNOWN ETIOLOGY 



Although the method described above is the one which is extensively 

 used in all established institutes for the treatment of rabies, other 

 methods have been elaborated and used to a slight extent. One of the 

 most important of these is the "dilution method" of Hogyes. This 

 method is carried out as follows: A definite quantity of the spinal cord 

 of a rabbit dead of virus fixe is emulsified in 100 c.c. of normal salt 

 solution. Dilutions of this emulsion are made and the patient is injected 

 at first with a dilution of 1 : 1,000, subsequent injections being made of 

 gradually increasing concentration until a concentration of 1 : 100 is 

 reached. This method, so far as it has been used, has been satisfactory, 

 but it has not yet found extensive application. 



Attempts to treat active rabies with the sera of immunized animals 

 have so far been unsuccessful. 



