[1] Zhejiang Univ, Sch Med, Affiliated Hosp 1, State Key Lab Diag & Treatment Infect Dis, Hangzhou, Zhejiang, Peoples R China
[2] Zhejiang Univ, Sch Med, Affiliated Hosp 1, Dept Gastroenterol, Hangzhou, Zhejiang, Peoples R China
[3] Lihuili Hosp, Ningbo Med Ctr, Dept Resp Med, Ningbo, Peoples R China
[4] Zhejiang Univ, Sch Med, Affiliated Hosp 1, Intens Care Unit, Hangzhou, Zhejiang, Peoples R China
[5] Zhejiang Univ, Sch Med, Affiliated Hosp 1, Dept Cardiovasc, Hangzhou, Zhejiang, Peoples R China
[6] Zhejiang Univ, Sch Med, Affiliated Hosp 1, Ctr Clin Lab, Hangzhou, Zhejiang, Peoples R China
[7] Chinese Acad Inspect & Quarantine, Inst Anim Quarantine, Beijing, Peoples R China