Funding for this research was provided by:
The national science and technology major project of China during the 13th Five-year plan period (2018ZX10302104)
Independent Research Foundation of the State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University (491010*A61703)
Received: 4 September 2019
Accepted: 19 November 2019
First Online: 12 December 2019
Ethics approval and consent to participate
: Ethics approval or consent to participate was not applicable.
: Written consent to publish is obtained from study participant, and written consent is available for review by the Editor-in-Chief of journal.
: The authors declare that they have no competing interests.