1. Division of Intramural Research (DIR), Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Hamilton, Montana;
2. Division of Intramural Research (DIR), Laboratory of Virology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Hamilton, Montana;
3. Division of Intramural Research (DIR), Office of Operations and Management, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Hamilton, Montana