Antimicrobial Resistance of Enterococci in Surface and Recycled Water in the Mid-Atlantic

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dc.contributor.advisorMicallef, Shirley Aen_US
dc.contributor.advisorPayne-Sturges, Devon Cen_US
dc.contributor.authorPatterson, Rebeccaen_US
dc.contributor.departmentMaryland Institute for Applied Environmental Healthen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2019-02-05T06:38:43Z
dc.date.available2019-02-05T06:38:43Z
dc.date.issued2018en_US
dc.description.abstractIncreasing demands for agricultural water require identification of alternative water sources. Enterococcus species can exhibit antimicrobial resistance and transfer resistance traits to other bacterial taxa, including human pathogens. This study evaluated the distribution and antimicrobial resistance of Enterococcus faecalis and E. faecium in surface and recycled waters. In all, 365 isolates from 129 water samples collected over one year were identified by species, and 95 were selected for antimicrobial susceptibility testing. Season, water type, temperature and salinity were statistically significantly associated with species probability, and season with antimicrobial resistance of E. faecalis. 1.3% of E. faecalis and 5.0% E. faecium were pan-susceptible but 100% were susceptible to ampicillin, vancomycin, daptomycin and linezolid. Multidrug resistance was detected in 16% of E. faecalis and 70% of E. faecium isolates. Enterococcus was ubiquitous in water and exhibited resistance to multiple antimicrobials, but resistance to antimicrobials of last resort for enterococcal infections was non-existent.en_US
dc.identifierhttps://doi.org/10.13016/uksi-pvml
dc.identifier.urihttp://hdl.handle.net/1903/21722
dc.language.isoenen_US
dc.subject.pqcontrolledEnvironmental healthen_US
dc.subject.pqcontrolledAgricultureen_US
dc.titleAntimicrobial Resistance of Enterococci in Surface and Recycled Water in the Mid-Atlanticen_US
dc.typeThesisen_US

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