Methicillin-Resistant Staphylococcus aureus Sequence Type 239-III, Ohio, USA, 2007–20091
Published Date:Oct 2012
Source:Emerg Infect Dis. 18(10):1557-1565.
Corporate Authors:for the Prevention Epicenter Program of the Centers for Disease Control and Prevention
Aged, 80 And Over
Bacterial Typing Techniques
Methicillin-resistant Staphylococcus Aureus
Microbial Sensitivity Tests
Funding:GM080602/GM/NIGMS NIH HHS/United States
KL2 RR02574/RR/NCRR NIH HHS/United States
R01 GM080602/GM/NIGMS NIH HHS/United States
U01 CI000328/CI/NCPDCID CDC HHS/United States
Description:Methicillin-resistant Staphylococcus aureus (MRSA) is a human pathogen that has diverse molecular heterogeneity. Most MRSA strains in the United States are pulsed-field gel electrophoresis USA100 sequence type (ST) 5 and USA300 ST8. Infections with MRSA ST239-III are common and found during health care-associated outbreaks. However, this strain has been rarely reported in the United States. As part of a study supported by the Prevention Epicenter Program of the Centers for Disease Control and Prevention (Atlanta, GA, USA), which evaluated transmission of MRSA among hospitals in Ohio, molecular typing identified 78 (6%) of 1,286 patients with MRSA ST239-III infections. Ninety-five percent (74/78) of these infections were health care associated, and 65% (51/78) of patients had histories of invasive device use. The crude case-fatality rate was 22% (17/78). Identification of these strains, which belong to a virulent clonal group, emphasizes the need for molecular surveillance.
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