Volume No. 8 Issue No.: 1 Page No.: 60-68 July-Sept. 2013

 

QUANTITATIVE MICROBIAL RISK ASSESSMENT IN THE MANAGEMENT OF Escherichia coli STRAINS VIA DRINKING WATER

 

Jessen George, Divya L. and Suriyanarayanan S.

Department of Water and Health, JSS University, SS Nagar, Mysore (INDIA)

 

Received on : June 05, 2013

 

ABSTRACT

 

Quantitative Microbial Risk Assessment (QMRA) is a process, analogous to chemical risk assessment of estimating human health risks due to exposures to microbial pathogens. Now -a - days Escherichia coli strains have emerged as water borne pathogens. It has been involved many water borne outbreaks across the world. The predominant outbreaks caused by the strain Escherichia coli O157:H7.It belongs to the member of the Enterohemorrhagic Escherichia coli. In order to manage Escherichia coli strains and to devise approaches to reduce the public health risk posed, many national and international groups have applied QMRA techniques to model the risk posed by Escherichia coli O157:H7 on drinking water. While multiple sources and routes of transmission of this pathogen are now recognized, contaminated drinking water serves as one of the important vehicle of the pathogen and continue to be linked to outbreaks across both developed and developing countries. This paper reviews these quantitative microbial risk assessments and their application in managing the risk posed by Escherichia coli O157: H7 on drinking water.

 

Keywords : QMRA, Water borne pathogens, Enterohemorrhagic Escherichia coli O157:H7, Water, Human health risks

 

 

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