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    MICROBIAL DIVERSITY AND ANTIBIOTIC RESISTANCE IN THE CHESAPEAKE BAY AND UPPER WATERSHED (WINTER OF 2013)

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    Author
    Lahanda Wadu, Vijitha de Silva
    Advisor
    Parrish, Nicole
    Date
    2016
    Type
    dissertation
    
    Metadata
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    Abstract
    Antimicrobial resistance is an emerging threat. The Chesapeake Bay and upper watershed were previously found to harbor AR in multiple bacteria during the summer months. During the winter of 2013, we conducted a pilot study to survey bacterial diversity and resistance in isolates from the Chesapeake Bay and upper watershed. Water samples were collected from nine sites on the Chesapeake Bay and upper watershed. All bacterial isolates were identified to the species level using MALDI-ToF MS. Antimicrobial susceptibility testing was performed for all Gram-negative isolates using Etest and 14 antibiotics. A total of 35 bacterial isolates were recovered from all sites, including 8 Gram-positive and 27 Gram-negative organisms. Resistance to chloramphenicol and imipenem exists in the Chesapeake Bay and upper watershed. Further studies are needed to better understand the antibiotic resistance identified in this study and potential sources of antibiotic exposure and transmission.
    Description
    University of Maryland, Baltimore. Medical and Research Technology. M.S. 2016
    Keyword
    antibiotic resistance
    Chesapeake Bay (Md. and Va.)
    Winter
    Bacteria
    Drug Resistance, Bacterial
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/6290
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    Theses and Dissertations All Schools
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