INFLUENCE OF DISEASE UPON MILK 125 



mastitis, but in other cases there seemed to be reason to 

 suspect that the milk had been infected by persons af- 

 fected with septic sore throat (see page 111) . 



SCARLET FEVER 



Scarlet fever has been disseminated by milk more 

 rarely than some of the other infectious diseases of man. 

 The epidemics reported occurred principally in the 

 United States and England. The infectious agent of 

 this disease has not been discovered and it is not definitely 

 known how it gains access to milk, but it is presumed 

 that the milk is infected directly or indirectly by persons 

 affected with the disease. The same action should be 

 taken against a milk-borne epidemic of this disease as is 

 indicated under typhoid fever. 



TUBERCULOSIS 



Tubercle bacilli of the human type have been demon- 

 strated in milk (Hess, Rabinowitsch), and there would 

 seem to be abundant opportunity for milk to be infected 

 by a consumptive working in a dairy. Tuberculous 

 individuals should therefore not be permitted to handle 

 milk. 



