CONTENTS ix 



IV. DISEASES CAUSED BY INFECTED MILK 



The Chara.ctee of Milk-Borne Epidemics 90 



Tdberculosis 92 



The Difference between Human and Bovine Tuberculosis . . 93 



How Tubercle Bacilli get into Milk 95 



How frequently does Milk contain Tubercle Bacilli ? ... 97 

 The Relation of Bovine Tuberculosis to Human Tuberculosis 99 

 The Prevalence of Tuberculosis among Dairy Herds . . . 102 



Tubercle Bacilli in Milk Products 103 



The Prevention of Bovine Tuberculosis 105 



The Tuberculin Test 106 



The Legal Status of the Tuberculin Test 109 



Tuberculosis in Hogs 112 



Typhoid Fever 113 



Bacillus Carriers 116 



The Characteristics of Milk-Borne Typhoid Outbreaks . .118 



SCAKLET FeVEB 118 



Diphtheria 120 



"Septic Sore Throat" — Streptococcus Tonsillitis . 122 



The Outbreak of Septic Sore Throat in Boston 124 



Other Outbreaks of Septic Sore Throat 128 



Milk Sickness 129 



Foot-and-Mouth Disease 130 



Mammitis, Mastitis, or Garget 132 



Malta Fever 133 



V. CLEAN MILK 



Fresh Milk 137 



Dr. North's Plan 139 



Certified Milk 141 



Historical 144 



The Medical Milk Commission 145 



The Certificate 148 



