Accepted for Publication: March 13, 2014.
Published Online: May 26, 2014. doi:10.1001/jamainternmed.2014.1875.
Study concept and design: Beaudoin, Torso, Richards, Van Beneden, Longenberger, Ostroff, Wendt, Dooling, Wise, Moll, Perz.
Acquisition, analysis, or interpretation of data: Beaudoin, Torso, Richards, Said, Ostroff, Wendt, Dooling, Wise, Blythe, Wilson, Perz.
Drafting of the manuscript: Beaudoin, Torso, Van Beneden, Longenberger, Ostroff, Wendt, Wise, Perz.
Critical revision of the manuscript for important intellectual content: Beaudoin, Torso, Richards, Said, Van Beneden, Wendt, Dooling, Wise, Blythe, Wilson, Moll, Perz.
Statistical analysis: Beaudoin, Wendt.
Administrative, technical, or material support: Torso, Richards, Said, Van Beneden, Longenberger, Ostroff, Wendt, Blythe, Moll.
Study supervision: Van Beneden, Ostroff, Wendt, Wise, Blythe, Wilson, Moll, Perz.
Conflict of Interest Disclosures: None reported.
Disclaimer: The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
Additional Contributions: Caroline Johnson, MD, Ami Patel, PhD, MPH, and Jennifer Sears, MPH, at the Philadelphia Department of Public Health in Pennsylvania assisted with health care worker interviews and specimen collection. Shaista Ajaz, BSW, C. Michael Baysinger, MPH, Julie Paoline, MA, Leah Posivak, MPH, and Linda Purcell, RN, at the Montgomery County Health Department in Pennsylvania assisted with health care worker interviews and site visits. Paula Eggers, RN, and Marjorie Shannon, MS, at the Delaware Department of Health investigated the potential role of the Delaware-based cosmetic surgery facility and conducted patient interviews. Ruth Thompson, BS, at the Maryland Department of Health and Mental Hygiene assisted with the Maryland facility investigation. Lisa Dettinger, MT, at the Pennsylvania Department of Health Bureau of Laboratories performed the bacterial culture for Pennsylvania health care workers. Bernie Beall, PhD, at the Centers for Disease Control and Prevention Streptococcus Laboratory conducted the emm and T-antigen typing. Alicia Demirjian, MD, MMSc, and Karrie-Ann Toews, MPH, at the Respiratory Diseases Branch, Centers for Disease Control and Prevention, provided subject matter support to the state health departments.