[1
]
Epidemic Intelligence Service National Center for Immunization and Respiratory Diseases,
Centers for Disease Control and Prevention Vanderbilt University, Nashville, Tennessee.
[2
]
National Center for Immunization and Respiratory Diseases, Centers for Disease Control
and Prevention.
[3
]
Emory University School of Medicine and the VA Medical Center, Atlanta, Georgia.
[4
]
Vanderbilt University, Nashville, Tennessee.
[5
]
Minnesota Department of Health, St Paul.
[6
]
Colorado Department of Public Health and Environment, Denver.
[7
]
New York State Department of Health, Albany.
[8
]
California Department of Public Health, Richmond.
[9
]
Oregon Health Authority, Portland.
[10
]
New Mexico Emerging Infections Program, University of New Mexico, Las Cruces.
[11
]
Department of International Health, Johns Hopkins Bloomberg School of Public Health,
Baltimore, Maryland.
[12
]
Connecticut Department of Public Health, Hartford.