1. Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
2. Institute of Human Infection and Immunity, University of Texas Medical Branch, Galveston, Texas, USA
3. Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, Texas, USA
4. UTMB Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas, USA
5. The Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, Texas, USA