, Volume 46, Issue 3, pp 319-324
Date: 05 Jul 2008

Molecular detection and characterization of human enteroviruses in Korean surface water

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Abstract

In this study, the genetic epidemiology of enteroviruses (EVs) in Korean surface water was evaluated by conducting phylogenetic analyses of the nucleotide sequences of the 5′ non-coding region (5′ NCR), which was determined by RT-PCR analysis of total culturable virus assay-positive samples. The results showed that the nucleotide sequences of the EVs could be classified into 4 genetic clusters, and that the predominant presence of Korea EVs were very similar to echoviruses type 30. Interestingly, two nucleotide sequences were very similar to those of coxsackievirus type B1 isolated from aseptic meningitis patients in Seoul, Korea, implying the possibility of a common source for the viruses circulated in water systems and humans. In addition, 3 nucleotide sequences clustered strongly with the nucleotide sequences from China or Japan, and one fell into the same cluster as echovirus type 11 from Taiwan, which suggests that EVs in Asia may have evolved in a region-specific manner. Taken together, the results of this study revealed that EVs from Korea surface waters could be genetically classified as coxsackieviruses or echoviruses, and that they evolved in Asia in a region-specific manner.