1. State Key Laboratory for Infection
Disease Prevention and Control, National Center for AIDS/STD Control
and Prevention (NCAIDS), Chinese Center for Disease Control and Prevention,
Beijing 102206, China
2. Laboratory
of Medical Molecular
Virology of Ministries of Education and Health, Shanghai Medical College
and Institute of Medical Microbiology, Fudan University, Shanghai
200032, China
3. Department
of Neurology, Indiana
University School of Medicine, Indianapolis, Indiana 46202, United
States