INDEX 



237 



Typhoid fever, transmission 

 of, by personal 

 contact, 111 

 by sewage, 110 

 by vegetables, 



111,190 



by water, 110, 193 

 Widal reaction in, 113 

 Typhus fever, 218 



URINE, collection of, 73 

 sterilization of, 54 



VACCINES, 83, 146, 226 



Vaccination, 215 



Vaccine treatment, 66, 82, 83, 



117, 125, 146 



Variola, 215. See Smallpox. 

 Vegetables, in typhoid fever 



transmission, 111, 190 

 Vegetative bacteria, 30 

 Viable, 226 

 Vincent's angina, 133 



bacteriological diag- 

 nosis of, 134 

 disinfection during 



attack, 134 



general description of 

 microorganisms of, 

 135 

 poisons, 134 



Virulence, 41, 60, 226 

 Virus, 41, 226 

 Vulvovaginitis, 87 



W 



WATER, bacteria in, 191 

 -borne diseases, 192 

 cholera spirilla in, 192 

 colon bacilli in, 193 

 diseases transmitted by, 62, 



192 



dysentery bacillus in, 193 

 examination of, 193 

 purification of, 191, 192 

 typhoid bacilli in, 110, 192, 



193 



fever from, 110 

 Whooping cough, 136 



Bordet-Gengou bacil- 

 lus in, 136 

 general description of, 



137 

 Widal reaction, 69, 113 



collection of blood for, 

 74 



YEASTS, 21, 180 



diseases due to, 181 

 general description of, 180 

 pathogenic powers of, 181, 



182 

 relation to blastomycosis, 



181 

 Yellow fever, 217 



mosquitoes in, 217 



