University of Vermont - Department of Microbiology and Molecular Genetics, University of North Carolina (UNC) at Chapel Hill - Department of Microbiology and Immunology, University of North Carolina (UNC) at Chapel Hill - Department of Microbiology and Immunology, University of Vermont - Department of Microbiology and Molecular Genetics, National Institutes of Health - Laboratory of Viral Diseases, University of Vermont, University of Vermont - Department of Microbiology and Molecular Genetics, University of Vermont - Department of Microbiology and Molecular Genetics, Johns Hopkins University - Department of International Health, University of North Carolina School of Medicine - Department of Microbiology and Immunology and University of Vermont Larner College of Medicine - Microbiology and Molecular Genetics