Record Details

Antimicrobial Susceptibility of Vibrio vulnificus and Vibrio parahaemolyticus Recovered from Recreational and Commercial Areas of Chesapeake Bay and Maryland Coastal Bays

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Title Antimicrobial Susceptibility of Vibrio vulnificus and Vibrio parahaemolyticus Recovered from Recreational and Commercial Areas of Chesapeake Bay and Maryland Coastal Bays
Names Shaw, Kristi S. (creator)
Goldstein, Rachel E. Rosenberg (creator)
He, Xin (creator)
Jacobs, John M. (creator)
Crump, Byron C. (creator)
Sapkota, Amy R. (creator)
Date Issued 2014-02-25 (iso8601)
Note This is the publisher’s final pdf. The article was published by the Public Library of Science and is in the public domain. The published article can be found at: http://www.plosone.org/.
Abstract Vibrio vulnificus and V. parahaemolyticus in the estuarine-marine environment are of human health significance and may be
increasing in pathogenicity and abundance. Vibrio illness originating from dermal contact with Vibrio laden waters or
through ingestion of seafood originating from such waters can cause deleterious health effects, particularly if the strains
involved are resistant to clinically important antibiotics. The purpose of this study was to evaluate antimicrobial
susceptibility among these pathogens. Surface-water samples were collected from three sites of recreational and
commercial importance from July to September 2009. Samples were plated onto species-specific media and resulting V. vulnificus and V. parahaemolyticus strains were confirmed using polymerase chain reaction assays and tested for
antimicrobial susceptibility using the Sensititre® microbroth dilution system. Descriptive statistics, Friedman two-way
Analysis of Variance (ANOVA) and Kruskal-Wallis one-way ANOVA were used to analyze the data. Vibrio vulnificus (n = 120)
and V. parahaemolyticus (n = 77) were isolated from all sampling sites. Most isolates were susceptible to antibiotics
recommended for treating Vibrio infections, although the majority of isolates expressed intermediate resistance to
chloramphenicol (78% of V. vulnificus, 96% of V. parahaemolyticus). Vibrio parahaemolyticus also demonstrated resistance to
penicillin (68%). Sampling location or month did not significantly impact V. parahaemolyticus resistance patterns, but V. vulnificus isolates from St. Martin’s River had lower overall intermediate resistance than that of the other two sampling sites
during the month of July (p = 0.0166). Antibiotics recommended to treat adult Vibrio infections were effective in suppressing
bacterial growth, while some antibiotics recommended for pediatric treatment were not effective against some of the
recovered isolates. To our knowledge, these are the first antimicrobial susceptibility data of V. vulnificus and V. parahaemolyticus recovered from the Chesapeake Bay. These data can serve as a baseline against which future studies can
be compared to evaluate whether susceptibilities change over time.
Genre Article
Access Condition http://creativecommons.org/publicdomain/zero/1.0/
Identifier Shaw KS, Rosenberg Goldstein RE, He X, Jacobs JM, Crump BC, et al. (2014) Antimicrobial Susceptibility of Vibrio vulnificus and Vibrio parahaemolyticus Recovered from Recreational and Commercial Areas of Chesapeake Bay and Maryland Coastal Bays. PLoS ONE 9(2): e89616. doi:10.1371/journal.pone.0089616

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