1. Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts 02115, United States
2. Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts 02115, United States
3. Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, PR China
4. Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
5. United States Army Research Institute of Infectious Diseases, Fort Detrick, Maryland 21702, United States