1. Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA.
2. Galveston National Laboratory, Galveston, TX 77555, USA.
3. Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA.
4. Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA.
5. Scripps Research Translational Institute, La Jolla, CA 92037, USA.
6. Virginia-Maryland Regional College of Veterinary Medicine, University of Maryland, MD 20742, USA.
7. La Jolla Institute for Immunology, La Jolla, CA 92037, USA.
8. RNA Virology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20814, USA.
9. Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
10. Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
11. Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
12. USDA-ARS, FADRU, Plum Island Animal Disease Center, Orient, NY 11957, USA.
13. Departments of Biomathematics, Biostatistics and Human Genetics, University of California, Los Angeles, CA 90095, USA.
14. Animal Resource Center, University of Texas Medical Branch, Galveston, TX 77555, USA.
15. Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.