Best emergency sanitary measure to control cholera is -: (A) Disinfection of stool, (B) Mass vaccination, (C) Provison of chlorinated water, (D) Chemoprophylaxis
Answer is C. 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