1. Department of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, West Virginia, USA
2. Vaccine Development Center at West Virginia University Health Sciences Center, Morgantown, West Virginia, USA
3. Department of Chemical Engineering, University of Texas at Austin, Austin, Texas, USA
4. Department of Medicine, Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
5. Department of Medicine, Section of Infectious Diseases, West Virginia University, Morgantown, West Virginia, USA