Funding for this research was provided by:
the national key research and development project (2021YFC0863000)
the national key technology r&d program of china (2018ZX10711001, ZDZX-2018ZX10101002-001-003, 2017ZX10104001, 2018ZX10101002-004-006)
beijing natural science foundation (Project No. L192014)
Received: 21 July 2021
Accepted: 1 November 2021
First Online: 20 November 2021
: Written informed consent for the use of their clinical samples was obtained from all individuals or their guardians included in the study. The study was approved by the Second Ethics Review Committee of the National Institute for Viral Diseases Control and Prevention (IVDC), Chinese Center for Diseases Control and Prevention, all experimental protocols were approved by IVDC and the methods were carried out in accordance with the approved guidelines.
: Not applicable.
: The authors declare that they have no competing interests.