STATE HYGIENE 633 



fever, man. There are other diseases communicable from 

 animal to animal, but limited to certain species ; for example, 

 foot and mouth disease may affect cattle, sheep, pigs, and 

 man ; glanders affects the horse, some minor animals like 

 the guinea-pig, and man ; finally, there is a group of diseases 

 which seems common to all the domesticated mammals as 

 well as man, viz., tuberculosis, anthrax, and rabies. 



In the search for the origin and transmission of disease 

 in the human subject, the fact that certain diseases are 

 common to animals and man has been the basis of many 

 errors in public medicine. 



Those diseases which are transmissible from animals to 

 man, are so certainly transmissible as not to leave the 

 slightest doubt in the mind of anyone. We may here 

 conveniently recall the dictum of McFadyean, that ' In 

 the whole range of Pathology there is not known a single 

 instance of a disease that is common to three of the 

 domestic species and yet does not attack man.' The 

 diseases of animals communicable to man are as follows : 



Cow-Pox, 



Foot and Mouth Disease, 



Babies, 



Glanders, 



Anthrax, 



Tuberculosis, 



Tetanus, 



Actinomycosis, 



Eingworm (certain forms). 



With the exception of tuberculosis, tetanus, ringworm, 

 and actinomycosis, it is permissible to regard the others 

 as purely diseases of animals, man only becoming infected 

 with these through an animal suffering from the affection. 

 In tuberculosis infection is not only from animal to man, 

 but more commonly perhaps from man to man. 



Nearly twenty years ago an attempt was made by the 

 medical profession to connect some diseases of animals 

 with the production of diphtheria and scarlet fever in man. 



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