1. Texas Children’s Hospital Center for Vaccine Development, Departments of Pediatrics and Molecular Virology, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX 77030, USA
2. Department of Biology, Baylor University, Waco, TX 76798, USA
3. James A Baker III Institute of Public Policy, Rice University, Houston, TX 77005, USA
4. Hagler Institute for Advanced Study and Scowcroft Institute of International Affairs, Texas A&M University, College Station, TX 77840, USA