Funding for this research was provided by:
National Natural Science Foundation of China (31822051&U1902211)
National Institutes of Health Grant (RO1AI129819)
Received: 24 January 2020
Accepted: 28 May 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: All animals were handled strictly in accordance with the guidelines of the Care and Use of Laboratory Animals of the National Institutes of Health and the Office of Laboratory Animal Welfare, China. The research protocol was approved by the Institutional animal care and use committee, Department of Laboratory Animal Science, Fudan University, China.
: Not applicable.
: The authors declare that they have no competing interests.