Author Contributions: Dr Chertow 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: Chertow, Tan, Schulte, Bresnitz, Weisman, Bernstein, Braden.
Acquisition of data: Chertow, Tan, Maslanka, Schulte, Bernstein, Marcus, Kumar, Malecki, Sobel, Braden.
Analysis and interpretation of data: Chertow, Tan, Maslanka, Schulte, Bresnitz, Malecki, Sobel, Braden.
Drafting of the manuscript: Chertow, Maslanka, Schulte, Bresnitz, Kumar, Malecki, Braden.
Critical revision of the manuscript for important intellectual content: Chertow, Tan, Maslanka, Schulte, Bresnitz, Weisman, Bernstein, Marcus, Malecki, Sobel, Braden.
Statistical analysis: Schulte.
Obtained funding: Schulte.
Administrative, technical, or material support: Chertow, Tan, Maslanka, Bresnitz, Weisman, Bernstein, Marcus, Malecki, Sobel.
Study supervision: Schulte, Bresnitz, Sobel, Braden.
Financial Disclosures: None reported.
Funding/Support: No private funding or material support was received for this investigation. Support was provided by the Centers for Disease Control and Prevention and the state health departments of Florida and New Jersey.
Role of the Sponsor: No private organization or agent had a role in the design or conduct of the study; in the collection, management, analysis, or interpretation of the data; or in the preparation, review, or approval of the manuscript.
Disclaimer: The use of trade names in this article does not constitute endorsement by authors or their affiliated organizations.
Acknowledgment: We are grateful to the astute clinicians and dedicated public health workers who promptly recognized and responded to this outbreak. The patients provided permission for their information to be included in this article.