Genetic relatedness of clinical and environmental isolates of lactose-positiveVibrio vulnificus |
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Authors: | David L Tison Ramon J Seidler |
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Institution: | (1) Department of Microbiology, Oregon State University, 97331 Corvallis, Oregon, USA |
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Abstract: | Environmental isolates of lactose-positiveVibrio vulnificus from different geographic areas were compared with clinical strains ofV. vulnificus on the basis of their phenotypic traits, virulence, DNA base composition, and DNA-DNA reasociation. EnvironmentalV. vulnificus strains were phenotypically indistinguishable from clinical isolates. These strains had a DNA base composition of 47–48 mol% guanine + cytosine and 85% reassociation at stringent temperature with DNA from clinicalV. vulnificus strains. These result indicateV. vulnificus strains from widely separated regions of the marine environment are indistinguishable from strains that have been agents of septicemia associated with shellfish consumption and of wound infections associated with seawater exposure. |
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