1. From the Beijing Institute of Microbiology and Epidemiology (H.L., M.-J.M., H.Y., W.L., W.-C.C.), State Key Laboratory of Pathogen and Biosecurity, Beijing, China; the Department of Neurosurgery (Z.-S.Z., W.-Z.Y., C.H., L.D.), 307 Hospital, PLA, Beijing, China; and The General Hospital (Z.N.D., M.-M.D., Y.-X.L.), PLA, Beijing, China.