222 



INDEX 



Typhoid fever, transmission of, 



by vegetables, 110, 179 

 by water, 109, 181, 182 

 Widal reaction in, 112 

 Typhus fever, 202 



URINE, collection of, 75 

 sterilization of, 56 



VACCINATION, 199 

 Vaccine treatment, 69, 84, 115 

 Vaccines, 69, 84, 115, 199, 211 

 Variola, 199. See Smallpox. 

 Vegetables in typhoid fever trans- 

 mission, 110, 179 

 Vegetative bacteria, 28 

 Viable, 211 

 Vincent's angina, 130 



bacteriological diagnosis of, 



130 



disinfection during attack, 130 

 general description of micro- 

 organisms of, 130, 131 

 poisons, 130 

 Virulence, 42, 61, 211 

 Virus, 211 



filterable, 199 

 Vulvovaginitis, 89, 91 



W 



WATER, bacteria in, 180 

 cholera spirilla in, 181 

 colon bacilli in, 182 

 diseases transmitted by, 62, 63, 



181 



dysentery bacillus in, 182 

 examination of, 182 

 purification of, 181 

 typhoid bacilli in, 109, 181 



fever from, 109 

 Water-borne diseases, 181 

 Welch, bacillus aerogenes capsula- 



tus of, 167 

 Whooping-cough, 133 



Bordet-Gengou bacillus in, 



133 



general description of, 133 

 Widal reaction, 68, 112 



collection of blood for, 76 



YEASTS, 21, 171 

 diseases due to, 172 

 general description of, 171, 172 

 pathogenic powers of, 172, 173 

 relation to blastomycosis, 172 



Yellow fever, 63, 202 



mosquitoes in, 63, 202, 231 



