Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources

Antimicrobial resistance (AMR) is an expanding public health concern and methicillin resistant Staphylococcus aureus (MRSA) is a notable example. Since the discovery of livestock associated MRSA (LA-MRSA), public health concerns have arisen surrounding the potential of LA-MRSA isolates to serve as a...

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Main Authors: Samantha J. Hau, Jisun S. Haan, Peter R. Davies, Timothy Frana, Tracy L. Nicholson
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-09-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmicb.2018.02102/full
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author Samantha J. Hau
Jisun S. Haan
Peter R. Davies
Timothy Frana
Tracy L. Nicholson
author_facet Samantha J. Hau
Jisun S. Haan
Peter R. Davies
Timothy Frana
Tracy L. Nicholson
author_sort Samantha J. Hau
collection DOAJ
description Antimicrobial resistance (AMR) is an expanding public health concern and methicillin resistant Staphylococcus aureus (MRSA) is a notable example. Since the discovery of livestock associated MRSA (LA-MRSA), public health concerns have arisen surrounding the potential of LA-MRSA isolates to serve as a reservoir for AMR determinants. In this study, we compare swine associated LA-MRSA ST5 and human clinical MRSA ST5 isolates for phenotypic antimicrobial susceptibilities determined via broth microdilution and genotypic determinants of AMR using whole genome sequencing and comparative genomic analysis to identify AMR elements. Swine associated LA-MRSA ST5 isolates exhibited phenotypic resistance to fewer antibiotics than clinical MRSA ST5 isolates from humans with no swine contact. Distinct genomic AMR elements were harbored by each subgroup, with little overlap in shared AMR genes between swine associated LA-MRSA ST5 and clinical MRSA ST5 isolates. Our results demonstrate that phenotypic antimicrobial susceptibilities and genotypic determinants of AMR among swine associated LA-MRSA ST5 and clinical MRSA ST5 isolates are separate and distinct.
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spelling doaj.art-3c3395284d5f4115aa37a5321f94613e2022-12-22T03:15:37ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2018-09-01910.3389/fmicb.2018.02102377008Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural SourcesSamantha J. Hau0Jisun S. Haan1Peter R. Davies2Timothy Frana3Tracy L. Nicholson4Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United StatesEnterics Unit-Infectious Disease Lab, Public Health Laboratory Division, Minnesota Department of Health, Saint Paul, MN, United StatesDepartment of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, United StatesDepartment of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United StatesNational Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, United StatesAntimicrobial resistance (AMR) is an expanding public health concern and methicillin resistant Staphylococcus aureus (MRSA) is a notable example. Since the discovery of livestock associated MRSA (LA-MRSA), public health concerns have arisen surrounding the potential of LA-MRSA isolates to serve as a reservoir for AMR determinants. In this study, we compare swine associated LA-MRSA ST5 and human clinical MRSA ST5 isolates for phenotypic antimicrobial susceptibilities determined via broth microdilution and genotypic determinants of AMR using whole genome sequencing and comparative genomic analysis to identify AMR elements. Swine associated LA-MRSA ST5 isolates exhibited phenotypic resistance to fewer antibiotics than clinical MRSA ST5 isolates from humans with no swine contact. Distinct genomic AMR elements were harbored by each subgroup, with little overlap in shared AMR genes between swine associated LA-MRSA ST5 and clinical MRSA ST5 isolates. Our results demonstrate that phenotypic antimicrobial susceptibilities and genotypic determinants of AMR among swine associated LA-MRSA ST5 and clinical MRSA ST5 isolates are separate and distinct.https://www.frontiersin.org/article/10.3389/fmicb.2018.02102/fullLA-MRSAStaphylococcus aureusantimicrobial resistanceswinemobile genetic elementsagriculture
spellingShingle Samantha J. Hau
Jisun S. Haan
Peter R. Davies
Timothy Frana
Tracy L. Nicholson
Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources
Frontiers in Microbiology
LA-MRSA
Staphylococcus aureus
antimicrobial resistance
swine
mobile genetic elements
agriculture
title Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources
title_full Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources
title_fullStr Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources
title_full_unstemmed Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources
title_short Antimicrobial Resistance Distribution Differs Among Methicillin Resistant Staphylococcus aureus Sequence Type (ST) 5 Isolates From Health Care and Agricultural Sources
title_sort antimicrobial resistance distribution differs among methicillin resistant staphylococcus aureus sequence type st 5 isolates from health care and agricultural sources
topic LA-MRSA
Staphylococcus aureus
antimicrobial resistance
swine
mobile genetic elements
agriculture
url https://www.frontiersin.org/article/10.3389/fmicb.2018.02102/full
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