ALLERGIC REACTIONS IN SERUM AND FOOD HYPERSENSITIVENESS 653 



A cutaneous test for serum t^persensitiveness is described on page 

 613 and illustrated in Fig. 126. An intracutaneous test may be con- 

 ducted by injecting into the skin (not subcutaneously) 0.1 c.c. of a 0.1 

 per cent, sterile solution of the serum. 



Cutaneous and intracutaneous tests for the detection of food idio- 

 syncrasies are described on page 616. 



Allergic reactions have also been observed, mostly in experimental 

 animals, in leprosy, sporotrichosis, in diseases due to hyphomycetes, and 

 in pregnancy. Further investigations will, no doubt, disclose reactions 

 of practical value in other diseases, such as rabies, scarlatina, measles, 

 etc., following the successful isolation and cultivation of their respective 

 causative microparasites. 



