1 University of Cincinnati Medical Center and Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
2 Providence Health & Services, Anchorage, AK.
3 Epidemic Intelligence Service, Alaska State Health Department, Centers for Disease Control and Prevention, Atlanta, GA.
4 National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, OH.
5 Alaska Department of Health and Social Services, Anchorage, AK.
6 Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, GA.
7 National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, OH. Electronic address: mdeperio@cdc.gov.