1. Virology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, USA
2. Headquarters Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, USA
3. Consultant, Fort Collins, Colorado, USA
4. Aldevron LLC, Fargo, North Dakota, USA
5. Center for Aerobiological Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, USA