1. Division of Infectious Diseases, Baylor Scott and White Health , Temple, Texas , USA
2. Department of Medicine, Central Texas Veterans Health Care System , Temple, Texas , USA
3. Department of Research, Central Texas Veterans Health Care System , Temple, Texas , USA
4. Department of Microbiology and Pathology, Central Texas Veterans Health Care System , Temple, Texas , USA
5. Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington , Seattle, Washington , USA
6. Gilead Sciences, Inc , Foster City, California , USA