124 



PHARMACEUTICAL BACTERIOLOGY. 



being similar in its effects to the antidiphtheric serum (antitoxin of diphthe- 

 ria). Belladonna is reported to be prophylactic as weU as curative in scarlet 

 fever. It is highly probable that as our knowledge of the therapeutic action 

 of drugs develops, there will be a complete revolution in their use as remedial 

 agents. 



In conclusion, we give a summarizing table of the several immunizing 

 agents above referred to and which will be more fully explained in the 

 chapter following. 



Immunizing 

 Agents 



Active 



Natural 



[ Bacteriolysins. 

 Inherited or normal i Opsonins. 

 [ Phagoqrtes. 



Artificial 



Passive 



Augmented — Immunizing infectious diseases. 



(Toxins. 

 Small-pox vaccination. 

 Rbies vaccination. 



Bacterins or vaccines. 



Bactericidal sera. 

 Antitoxins — Diphtheric, tetanic, etc. 

 Drugs — Nuclein, lobelia, phosphorus, etc. 



Modified toxins 

 and toxins. 



Bacterial 



