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Lack of virulence factors in Escherichia coli strains of enteropathogenic serogroups isolated from water

Sandro Roberto Valentini, Tânia A. T. Gomes, Deise Pasetto Falcão

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Abstract

Thirty-eight Escherichia coli strains belonging to 14 human enteropathogenic serogroups were isolated from 33 of 208 water samples studied. No virulence factor or virulence-related gene sequences were found in any of the 38 strains analyzed. The results point out the importance of detecting specific virulence factors before incriminating water as a source of human diarrhea.

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Thirty-eight Escherichia coli strains belonging to 14 human enteropathogenic serogroups were isolated from 33 of 208 water samples studied. No virulence factor or virulence-related gene sequences were found in any of the 38 strains analyzed. The results point out the importance of detecting specific virulence factors before incriminating water as a source of human diarrhea.

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Available abstract

Thirty-eight Escherichia coli strains belonging to 14 human enteropathogenic serogroups were isolated from 33 of 208 water samples studied. No virulence factor or virulence-related gene sequences were found in any of the 38 strains analyzed. The results point out the importance of detecting specific virulence factors before incriminating water as a source of human diarrhea.

Key concepts: Virulence, Enteropathogenic Escherichia coli, Microbiology, Escherichia coli, Biology, Virulence factor, Diarrhea, Serotype

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