1 Biocontainment Unit, University of Texas Medical Branch, Galveston, TX, United States. Electronic address: Sumclell@utmb.edu.
2 University of Nebraska Medical Center and College of Public Health, Omaha, NE, United States. Electronic address: Mark.kortepeter@unmc.edu.
3 Special Pathogens Unit, National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA, United States. Electronic address: Nahid.Bhadelia@bmc.org.
4 Infection Control Unit, Massachusetts General Hospital, United States; Harvard Medical School, Boston, MA, United States. Electronic address: eshenoy@mgh.harvard.edu.
5 Johns Hopkins Biocontainment Unit, Johns Hopkins School of Medicine, Baltimore, MD, United States. Electronic address: Lsauer2@jhmi.edu.
6 Department of Medicine, Biocontainment Unit, Denver Health Hospital Authority, United States; University of Colorado School of Medicine, United States. Electronic address: Maria.frank@dhha.org.
7 Nebraska Biocontainment Unit, University of Nebraska Medical Center, Omaha, NE, United States. Electronic address: Ted.cieslak@unmc.edu.