xvi CONTENTS 



CHAPTER XIII OPSONIC INDEX 166 



Historic, 166 Technic of opsonic index, 167 

 Carrying out the test, 168 Practical value of 

 opsonic index, 169. 



PART IV 



VACCINES IN THE PROPHYLAXIS OF DISEASE 



CHAPTER XIV PROPHYLACTIC VACCINES 172 



Types of vaccines, 172 Prophylactic vaccina- 

 tion, 173 Smallpox, 175 Historic, 175 Preva- 

 lence, 177 Mortality, 179 Results of vaccination, 

 179 Discovery of vaccination, 180 Preparation of 

 Vaccine Virus, 182 Tests applied to virus, 182 

 Deterioration of virus, 183 Technic of vaccination, 

 184 After-care, 186 Dangers, 188 Revaccina- 

 tion, 189. 



CHAPTER XV RABIES 190 



Historic, 190 Prevalence, 190 Animals af- 

 fected, 191 Nature of the disease, 191 Symptoms 

 in the dog, 192 Cause of rabies, 194 Care of ani- 

 mal, 195 Care of bitten individual, 197 Indica- 

 tions for Rabies Vaccine, 198 Dosage, 198 Meth- 

 od of administration, 198 Prognosis, 199 How to 

 secure treatment, 200 Plan of treatment, 201. 



CHAPTER XVI TYPHOID FEVER 202 



Prevalence, 202 Vaccination, 203 Vaccinating 

 children, 204 Directions for using Typhoid Vac- 

 cine, 205 Reaction, 206 Immunity, 207 Revac- 

 cination, 208 Practical application, 208 Typhoid 

 and tuberculosis, 209 Paratyphoid fever, 209 

 Dosage of Combined Typhoid Vaccine, 212. 



CHAPTER XVII CHOLERA AND PLAGUE . 213 



Prevalence of cholera, 213 Vaccination, 213 

 Results, 215 Plague, 215 Prevalence, 215 Vac- 

 cination, 216 Practical application, 217 Results, 

 217. 



