[The preservation of the causative agent of cholera in the water supplies of the central regions of Dagestan (experimental data)]. / O sokhranenii vozbuditelia kholery v vodnykh istochnikakh tsentral'nykh raionov Dagestana (éksperimental'nye dannye).

The acidic pH of water of surface water reservoirs in Izberbash and two adjoining regions, including sea water, seems to be unfavorable for the prolonged preservation of Vibrio cholerae eltor, but additional ecological investigations are necessary to study the possibility for infection to take root at this territory. Water from the Zam-Zam spring, if contaminated with V. cholerae, may serve as a transmission factor, but the duration of its action is limited by the survival term of V. cholerae. The water route of transmission did not play any essential role in the spread of cholera in the central regions of Daghestan.