1 Office of the Deputy Director for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
2 Minnesota Department of Health, St. Paul, MN, USA.
3 Division of Viral Hepatitis, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA.
4 Division of Violence Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA, USA.
5 Oak Ridge Associated Universities, Division of Injury Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA, USA.
6 Office of the Director, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, GA, USA.