Yuanyun Ao a, 1
These authors contributed equally to this work.
, Jingjing Li b, 1
These authors contributed equally to this work.
, Zhongqiu Wei b, Zhonglin Wang b, He Tian b, Yue Qiu b, Xiaomin Fu b, Wenjie Ma b, Liting Li b, Mei Zeng b, c, ⁎
, Jin Xu a, c, ⁎ 
a Department of Clinical Laboratory, National Children's Medical Center, Children's Hospital of Fudan University, 399 Wanyuan Road, Min-hang District, Shanghai 201102, China
b Department of Infectious Diseases, National Children's Medical Center, Children's Hospital of Fudan University, 399 Wanyuan Road, Min-hang District, Shanghai 201102, China
c Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai 201102, China