INFECTIOUS DISEASES. 25 



to another patient by the bite of this mosquito as 

 the inoculation experiment which is desired. 



The term "specific infectious disease" has come specific 



, . , . -ri T i i Infections 



to have a very special meaning. It is applied to a Diseases. 

 disease having characteristic clinical and anatomic 

 phenomena, which can be caused only by one par- 

 ticular micro-organism. Among the diseases 

 which come within the limits of this brief defini- 

 tion,, the following may be enumerated (the micro- 

 organism which is the cause of each disease being 

 also given), for the sake of illustration. 



Diphtheria Bacillus diphtheria 



Tetanus Bacillus tetani 



Typhoid fever Bacillus typhosus 



Cholera Vibrio cholera 



Anthrax Bacillus anthracis 



Tuberculosis Bacillus tuberculosis 



Leprosy Bacillus lepra 



Plague Bacillus pestis 



Dysentery (bacillary) Bacillus dysenteric 

 Influenza Bacillus influenza 



Glanders (farcy) Bacillus mallei 

 Chancroid Bacillus chancri mollis 



(Ducrey) 



Eecurrent fever Spirillum obermeieri 



Gonorrhea Micrococcus gonorrhoea 



Epidemic cerebrospi- Diplococcus intracellula- 

 nal meningitis ris meningitidis (of 



Weichselbaum) 

 Actinomycosis Actinomyces bovis et 



hominis 

 Blastomycosis Blastomycetes and Oidia 



Malaria Plasmodium malaria 



Syphilis Spirochata pallida 



