1. Division of Infectious Diseases, Department of Medicine University of Texas Medical Branch Galveston Texas USA
2. Virology Department National Institute of Veterinary Research Hanoi Vietnam
3. Institute for Translational Science University of Texas Medical Branch Galveston Texas USA
4. Department of Microbiology and Immunology University of Texas Medical Branch Galveston Texas USA
5. Institute for Human Infections and Immunity University of Texas Medical Branch Galveston Texas USA
6. Department of Global Health and Emerging Diseases, School of Public and Population Health University of Texas Medical Branch Galveston Texas USA