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Methicillin-resistant Staphylococcus aureus in public transportation vehicles (buses): Another piece to the epidemiologic puzzle.
MedLine Citation:
PMID:  25465258     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: Little is known about the occurrence and epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) in public transportation in the United States. This research sought to determine the background prevalence and phenotypic and genotypic characteristics of MRSA strains circulating on buses from a large, metropolitan transportation agency.
METHODS: Electrostatic wipes were used to collect 237 surface samples from 40 buses randomly selected from July-October 2010. Six samples were collected from each bus immediately postservice and before any cleaning and disinfection. Positive isolates were analyzed for antibiotic resistance, staphylococcal cassette chromosome mec (SCCmec) type, and pulsed-field gel electrophoresis; and potential epidemiologic factors were examined.
RESULTS: Of the buses, 68% (27/40) were contaminated with S aureus, and 63% (25/40) were contaminated with MRSA. Seats and seat rails were the surfaces most frequently contaminated, followed by the back door and stanchions. Most (62.9%) of the MRSA isolates were classified as community-associated MRSA clones (SCCmec type IV), and 22.9% were health care-associated MRSA clones (SCCmec type II). Of the MRSA strains, 65% (5/20) were multidrug resistant.
CONCLUSION: MRSA was frequently isolated from commonly touched surfaces in buses serving both hospital and community routes. Phenotypic and genotypic analysis demonstrated that buses may be effective mixing vessels for MRSA strains of both community and health care-associated origin.
Authors:
Jonathan K Lutz; Joany van Balen; John Mac Crawford; John R Wilkins; Jiyoung Lee; Rocio C Nava-Hoet; Armando E Hoet
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Publication Detail:
Type:  Journal Article     Date:  2014-11-25
Journal Detail:
Title:  American journal of infection control     Volume:  42     ISSN:  1527-3296     ISO Abbreviation:  Am J Infect Control     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8004854     Medline TA:  Am J Infect Control     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1285-90     Citation Subset:  IM    
Copyright Information:
Copyright © 2014 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.
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