Author information:
(1)Laboratory of Virology, Division of Intramural Research, National Institute 
of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, 
Montana.
(2)Joint Program Executive Office Chemical-Biological Defense, Medical 
Countermeasures Systems' Joint Vaccine Acquisition Program, Fort Detrick, 
Maryland.
(3)Rocky Mountain Veterinary Branch, Division of Intramural Research, National 
Institute of Allergy and Infectious Diseases, National Institutes of Health, 
Hamilton, Montana.
(4)SAB Biotherapeutics, Sioux Falls, South Dakota.
(5)Virology Division, United States Army Medical Research Institute of 
Infectious Diseases, Fort Detrick, Maryland.
(6)Zoonotic Diseases and Special Pathogens, Public Health Agency of Canada, 
Winnipeg, Manitoba, Canada.