1 Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.
2 National Biodefense Analysis and Countermeasures Center, Frederick, Maryland, USA.
3 Division of Adult Infectious Diseases, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.
4 Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA Melissa.Miller@unchealth.unc.edu.