Author Contributions: Dr Klevens had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Klevens, Morrison, Gershman, Lynfield, Townes, Craig, Carey, Fridkin.
Acquisition of data: Klevens, Morrison, Nadle, Petit, Ray, Harrison, Lynfield, Dumyati, Townes, Craig, Fosheim.
Analysis and interpretation of data: Klevens, Morrison, Ray, Lynfield, Zell, Fosheim, McDougal, Fridkin.
Drafting of the manuscript: Klevens, Morrison, Fridkin.
Critical revision of the manuscript for importan intellectual content: Klevens, Morrison, Nadle, Petit, Gershman, Ray, Harrison, Lynfield, Dumyati, Townes, Craig, Zell, Fosheim, McDougal, Carey, Fridkin.
Statistical analysis: Morrison, Zell.
Obtained funding: Klevens, Fridkin.
Administrative, technical, or material support: Klevens, Ray, Harrison, Lynfield, Townes, Craig, Fosheim, Carey, Fridkin.
Study supervision: Klevens, Gershman, Dumyati, Townes, Craig, Carey, Fridkin.
Financial Disclosures: None reported.
Active Bacterial Core surveillance (ABCs) MRSA Investigators: William Schaffner, MD, Tennessee Emerging Infections Program (EIP); Jessica Buck, Minnesota EIP; Jim Hadler, MD, Connecticut EIP; Monica M. Farley, MD, Georgia EIP; Laurie Thompson Sanza, Maryland EIP; Michael Emerson, Oregon EIP; Brandi M. Limbago, PhD, Fred C. Tenover, PhD, and Jean B. Patel, PhD, Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention (CDC).
Funding/Support: This study was funded through the Emerging Infections Program, National Center for Preparedness, Detection, and Control of Infectious Diseases, Coordinating Center for Infectious Diseases, CDC.
Role of the Sponsor: No commercial entity had any role in the design and conduct of the study; the collection, management, analysis, and interpretation of the data; or the preparation, review, or approval of the manuscript.
Additional Contributions: We thank Elizabeth Partridge, Pam Daily, MPH, and Gretchen Rothrock, California EIP; Steve Burnite, Deborah Aragon, Nicole Comstock, Allison Daniels, and Jonathan Schwartz, Colorado EIP; Zack Fraser and Nancy L. Barrett, MS, MPH, Connecticut EIP; Wendy Baughman, MSPH, Janine Ladson, MPH, James Howgate, MPH, and Emily McMahan, RN, BSN, Georgia EIP; Janice Langford and Kathleen Shutt, Maryland EIP; Dave Doxrud and Selina Jawahir, Minnesota EIP; Nana Bennett, MD, Anita Gellert, RN, and Paul Malpiedi, New York EIP; Robert Vega, Janie Tierheimer, Karen Stefonek, Michelle Barber, and Ann Thomas, MD, Oregon EIP; Brenda Barnes, Terri McMinn, Jane Conners, and Melinda Eady, Tennessee EIP; and Sandra Bulens, MPH, Chris Van Beneden, MD, MPH, Tami Skoff, MS, Carolyn Wright, and Emily Weston, CDC, for ongoing surveillance and case follow-up; Christina Crane, CDC, for microbiological testing of the isolates; John Jernigan, MD, CDC, for guidance with the design of the surveillance project; and Jeff C. Hageman, MHS, CDC, for manuscript review and surveillance guidance. None of these individuals received any compensation from industry related to this study.