MILTON J. ROSENAU 



411 



Practically all the milk (except certified milk) handled by the large dairies in the 

 United States is now pasteurized. This means that most of the milk supplied our 



Massachusetts 



Typhoid fever: 



1007-15 



1915-18 



1919-23 



Total. 



Septic sore throat: 



1907-15 



1915-18 



1919-23 



Total 



Scarlet fever 

 1907-15.. . 

 1915-18.. . 

 1919-23.. . 



Total. 



Diphtheria : 

 1907-15.. 

 1915-18. . 

 1919-23.. 



Total. 



*Not reported until 1Q15. 



TABLE I 



Total Cases 

 Reported 



23,482 



6,331 

 4,105 



33,918 



1 ,401 

 829 



2, 230 



70,569 

 25,328 



46,777 



142,674 



69,646 

 33,807 

 42,386 



145,839 



Number of 



Cases Traced 



to Milk 



2,215 

 496 

 297 



3,008 



2,512 

 867 

 118 



3,497 



,747 

 140 



53 



2,940 



131 

 30 



169 



Cases Traced 



to Milk 



(Percent) 



9-4 



7.8 

 7.2 



8.86 



61.9 

 14. 2 



3 9 

 .6 



2.06 



o. 2 

 o. I 

 o. 02 



o. 116 



Number of 



Outbreaks 



Traced to 



Milk 



50 

 16 



78 



17 



10 



4 



15 



Outbreaks 

 Traced to 



Milk 

 (Per Cent) 



69.4 



57-1 

 70.6 



66.8 



9-7 

 250 

 17.6 



14.6 



13-9 



143 



5-9 



12.8 



6.9 

 3-6 

 5-9 



6.0 



metropolitan cities is safeguarded. The smaller towns and rural sections mainly use 

 raw milk. Frequently it is not economical for the small dealers to install pasteurizing 

 apparatus. The problem in such places is one of co-operation and education. 



TABLE II 



Massacliusetts 



Total Cases 

 Reported 



Number of 



Cases Traced 



to Milk 



Cases Traced 



to Milk 



(Per Cent) 



Number of 

 Outbreaks 

 Traced to 



Milk 



Outbreaks 

 Traced to 



Milk 

 (Per Cent) 



Typhoid fever: 



1924-26 



Septic sore throat 



1924-26 



Scarlet fever: 



1924-26 



Diphtheria: 



1924-26 



1,705 



415 



36,052 



15,173 



81 



o 



56 



25 



41 

 0.0 



O. I 

 O. I 



77-7 



0.0 



II. I 



II. I 



Tuberculosis. — Milk is the chief vector for the conveyance of bovine tubercle ba- 

 cilli from cow to man. They get into milk either directly as a result of tuberculosis 



