<prompt> Best emergency sanitary measure to control cholera is -Disinfection of stoolMass vaccinationProvison of chlorinated waterChemoprophylaxis  <response>: In cholera, as an emergency measure, in urban areas, properly treated drinking water containing free residual chlorine should be made available to all families; this water should be stored in the household in narrow-mouthed, covered containers. Ref: PARK;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition , Page 233 