Abstract
Enteroviruses, the main cause of aseptic meningitis, consist of 100 serotypes, and many of them have been associated with large outbreaks. In the present study, a comparison of RFLP analysis of the 5' untranslated region (5'UTR) and sequencing of both the 5'UTR and VP1 regions was conducted for epidemiological linkage of 27 clinical enterovirus strains. The clinical enterovirus strains were clustered into five restriction profile groups. Even though the restriction profile clusters of clinical isolates were not related to those of the respective prototype strains, epidemiological relationships between the members of each cluster were observed. The restriction profile clusters in the 5'UTR corresponded to the phylogenetic clusters in the VP1 genomic region. The incongruence between the topology of Gior strain in 5'UTR and VP1 phylogenetic trees indicates a recombination event. The proposed RFLP assay in combination with VP1 sequencing can offer crucial epidemiological information about the circulating enteroviruses.
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