[1] Sichuan Univ, West China Hosp, Ctr Infect Dis, Chengdu 610064, Peoples R China
[2] State Key Lab Biotherapy, Div Infect Dis, Chengdu, Peoples R China
[3] Sichuan Univ, West China Hosp, Dept Lab Med, Lab Clin Microbiol, Chengdu 610064, Peoples R China
[4] Sichuan Univ, West China Hosp, Dept Haematol, Chengdu 610064, Peoples R China
[5] Sichuan Univ, West China Hosp, Dept Infect Control, Chengdu 610064, Peoples R China