1. Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA
2. Center for Molecular Medicine, University of Georgia, Athens, Georgia, USA
3. Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
4. Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
5. Division of Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York, USA