[1] New York Blood Ctr, Lindsley F Kimball Res Inst, New York, NY 10065 USA
[2] Beijing Inst Microbiol & Epidemiol, State Key Lab Pathogen & Biosecur, Beijing 100071, Peoples R China
[3] So Med Univ, Sch Pharmaceut Sci, Guangzhou 510515, Guangdong, Peoples R China
[4] Univ Hong Kong, Dept Microbiol, Pokfulam, Hong Kong, Peoples R China