1. Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
2. North Carolina School of Science and Mathematics, Durham, North Carolina 27705, United States
3. Center for Vaccines and Immunology, University of Georgia, Athens, Georgia 30602, United States
4. Department of Infectious Diseases, University of Georgia, Athens, Georgia 30602, United States
5. Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
6. Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27514, United States