[1
]Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention,
Atlanta, Georgia2Epidemic Intelligence Service, Division of Scientific Education and
Professional Development, Centers for Disease Control and Prevention, Atlanta, Georg
[2
]Epidemic Intelligence Service, Division of Scientific Education and Professional Development,
Centers for Disease Control and Prevention, Atlanta, Georgia3Illinois Department of
Public Health, Chicago, Illinois
[3
]Illinois Department of Public Health, Chicago, Illinois
[4
]Advocate Lutheran General Hospital, Park Ridge, Illinois
[5
]Cook County Department of Public Health, Oak Forest, Illinois
[6
]Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention,
Atlanta, Georgia
[7
]Chicago Department of Public Health, Chicago, Illinois