1 Department of Infectious Disease, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Road, Zhengzhou, 450052, Henan, People's Republic of China. zhiqinli03@yeah.net.
2 Department of Infectious Disease, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Road, Zhengzhou, 450052, Henan, People's Republic of China.
3 Department of Infectious Disease, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Road, Zhengzhou, 450052, Henan, People's Republic of China. yuzujian@yeah.net.