1. Departement of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
2. Department of Biology and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA
3. Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
4. Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
5. Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA
6. Sealy Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX, USA