1. Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
2. Department of Pathology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
3. Department of Pharmacology and Toxicology, Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
4. Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX, USA