1. Centers for Disease Control and Prevention Atlanta Georgia USA
2. Synergy America, Inc. Duluth Georgia USA
3. Department of Family and Community Medicine University of California San Francisco School of Medicine San Francisco California USA
4. California Emerging Infections Program Oakland California USA
5. Vanderbilt University Medical Center Nashville Tennessee USA
6. Connecticut Emerging Infections Program at Yale New Haven Connecticut USA
7. Oregon Department of Human Services Portland Oregon USA
8. University of Rochester School of Medicine and Dentistry Rochester New York USA