1. From the Centers for Disease Control and Prevention, Division of Infectious Disease Readiness and Innovation, Arctic Investigations Program, Anchorage, Alaska
2. Center for Indigenous Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
3. Infectious Disease Branch, Office of Public Health Support, Indian Health Service, Rockville, Maryland
4. Division of Community Health Services, Alaska Native Tribal Health Consortium, Anchorage, Alaska.