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Int. J. Environ. Res. Public Health 2013, 10(3), 1020-1036; doi:10.3390/ijerph10031020
Article

Antimicrobial Resistance in Enterococcus spp. Isolated from Environmental Samples in an Area of Intensive Poultry Production

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Received: 15 January 2013; in revised form: 20 February 2013 / Accepted: 4 March 2013 / Published: 12 March 2013
(This article belongs to the Special Issue Environmental Determinants of Infectious Disease Transmission)
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Abstract: Enterococcus spp. from two poultry farms and proximate surface and ground water sites in an area of intensive poultry production were tested for resistance to 16 clinical antibiotics. Resistance patterns were compared to assess trends and possible correlations for specific antimicrobials and levels of resistance. Enterococci were detected at all 12 surface water sites and three of 28 ground water sites. Resistance to lincomycin, tetracycline, penicillin and ciprofloxacin in poultry litter isolates was high (80.3%, 65.3%, 61.1% and 49.6%, respectively). Resistance in the surface water to the same antibiotics was 87.1%, 24.1%, 7.6% and 12.9%, respectively. Overall, 86% of litter isolates, 58% of surface water isolates and 100% of ground water isolates were resistant to more than one antibiotic. Fifty-four different resistance patterns were recognised in isolates obtained from litter and environmental samples and several E. faecium and E. faecalis isolates from litter and environment samples shared the same resistance pattern. Multiple antibiotic resistant (MAR) indices calculated to assess health risks due to the presence of resistant enterococci suggested an increased presence of antibiotics in surface water, likely from poultry sources as no other wastewater contributions in the area were documented.
Keywords: Enterococci; antimicrobial; resistance; poultry litter; ground water; surface water; contamination Enterococci; antimicrobial; resistance; poultry litter; ground water; surface water; contamination
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Furtula, V.; Jackson, C.R.; Farrell, E.G.; Barrett, J.B.; Hiott, L.M.; Chambers, P.A. Antimicrobial Resistance in Enterococcus spp. Isolated from Environmental Samples in an Area of Intensive Poultry Production. Int. J. Environ. Res. Public Health 2013, 10, 1020-1036.

AMA Style

Furtula V, Jackson CR, Farrell EG, Barrett JB, Hiott LM, Chambers PA. Antimicrobial Resistance in Enterococcus spp. Isolated from Environmental Samples in an Area of Intensive Poultry Production. International Journal of Environmental Research and Public Health. 2013; 10(3):1020-1036.

Chicago/Turabian Style

Furtula, Vesna; Jackson, Charlene R.; Farrell, Erin G.; Barrett, John B.; Hiott, Lari M.; Chambers, Patricia A. 2013. "Antimicrobial Resistance in Enterococcus spp. Isolated from Environmental Samples in an Area of Intensive Poultry Production." Int. J. Environ. Res. Public Health 10, no. 3: 1020-1036.


Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert