Epidemiological assessment of surface water bodies with the consideration of their contamination by vibrio cholerae O1 and O139 as a constituent part in determining the epidemic potential of an administrative territory

Abstract

In this paper the degree of potential epidemic hazard (DPEH) is defined of surface water bodies utilized as the sources of centralized household water supply and for recreational purposes, with the consideration of their contamination by Vibrio cholerae O1 and O139 and the quality of wastewater discharged into surface water bodies, in 67 subjects of the Russian Federation. High and increased DPEH of surface water bodies in case of their contamination by V. cholerae O1 ctxA+ tcpA+, V. cholerae ctxA- tcpA+ and V. cholerae O1 and O139 ctxA- tcpA- implies the presence of both real and potential epidemiological risks of realisation of the water route of transmission of the infectious agent. DPEH of water bodies together with other data will be used for determination of the epidemic potential of an administrative territory.