Dissertation/Thesis Abstract

Assessing the presence of antibiotic-resistant Enterococcus in reclaimed water used for spray irrigation
by Carey, Stephanie Ann, M.P.H., University of Maryland, College Park, 2013, 69; 1547678
Abstract (Summary)

Reclaiming wastewater is increasing in the US to combat dwindling freshwater supplies. This water potentially contains pathogenic bacteria; therefore, we evaluated the occurrence, concentration, and antimicrobial susceptibilities of Enterococcus spp.--an important opportunistic pathogen that remains a leading cause of nosocomial infections--in reclaimed water used for spray irrigation (SI). A total of 48 wastewater effluent and SI samples were collected in 2009 and 2010 from the Mid-Atlantic and Midwest regions of the US. Enterococci were isolated using membrane filtration, confirmed using biochemical tests and PCR, and tested for antimicrobial susceptibility using the Sensititre® dilution system. We detected total enterococci and vancomycin-resistant enterococci (VRE) in 68% (27/40) and 8% (3/40), respectively, of all SI samples. VRE and vancomycin-intermediate enterococci (VIE) represented 2% (1/41) and 10% (4/41), respectively, of the total enterococci recovered from all SI sites. Our findings show that SI workers may be exposed to enterococci during spray irrigation activities.

Indexing (document details)
Advisor: Sapkota, Amy R., Turner, Paul
Commitee: Sapkota, Amir
School: University of Maryland, College Park
Department: Maryland Institute for Applied Environmental Health
School Location: United States -- Maryland
Source: MAI 52/03M(E), Masters Abstracts International
Subjects: Microbiology, Environmental Health, Public health, Environmental science
Keywords: Antibiotic resistance, Enterococcus, Multidrug resistance, Reclaimed wastewater, Spray irrigation
Publication Number: 1547678
ISBN: 978-1-303-49811-4
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