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USA300 Methicillin-Resistant Staphylococcus aureus, United States, 2000-2013
Journal article   Open access   Peer reviewed

USA300 Methicillin-Resistant Staphylococcus aureus, United States, 2000-2013

Margaret Carrel, Eli N Perencevich and Michael Z David
Emerging infectious diseases, Vol.21(11), pp.1973-1980
11/2015
DOI: 10.3201/eid2111.150452
PMCID: PMC4622244
PMID: 26484389
url
https://doi.org/10.3201/eid2111.150452View
Published (Version of record) Open Access

Abstract

In the United States, methicillin-resistant Staphylococcus aureus (MRSA) with the USA300 pulsed-field gel electrophoresis type causes most community-associated MRSA infections and is an increasingly common cause of health care-associated MRSA infections. USA300 probably emerged during the early 1990s. To assess the spatiotemporal diffusion of USA300 MRSA and USA100 MRSA throughout the United States, we systematically reviewed 354 articles for data on 33,543 isolates, of which 8,092 were classified as USA300 and 2,595 as USA100. Using the biomedical literature as a proxy for USA300 prevalence among genotyped MRSA samples, we found that USA300 was isolated during 2000 in several states, including California, Texas, and midwestern states. The geographic mean center of USA300 MRSA then shifted eastward from 2000 to 2013. Analyzing genotyping studies enabled us to track the emergence of a new, successful MRSA type in space and time across the country.
United States - epidemiology Staphylococcal Infections - drug therapy Prevalence Staphylococcal Infections - epidemiology Humans Methicillin-Resistant Staphylococcus aureus - drug effects Molecular Epidemiology - methods Electrophoresis, Gel, Pulsed-Field - utilization Methicillin-Resistant Staphylococcus aureus - genetics Cross Infection - epidemiology

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