1. Division of Vector-Borne Diseases, Arboviral Disease Branch, Centers for Disease Control and Prevention, Fort Collins, Colorado.
2. Epidemic Intelligence Service Office, Centers for Disease Control and Prevention, Atlanta, Georgia.
3. Infectious Disease Epidemiology Program, Maine Centers for Disease Control and Prevention, Augusta, Maine.
4. Division of Animal, Health, and Industry, Maine Department of Agriculture, Food, and Rural Resources, Augusta, Maine.
5. Health and Environmental Testing Laboratory, Maine Centers for Disease Control and Prevention, Augusta, Maine.
6. Vector-Borne Disease Laboratory, Maine Medical Center Research Institute, Portland, Maine.