Funding for this research was provided by:
Program for Changjiang Scholars and Innovative Research Team in University (IRT_17R68)
Open Project of Shandong Provincial Key Laboratory of Infection and Immunity (No. 2)
Received: 9 May 2020
Accepted: 3 August 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: All animals were treated according to the NIH Guide for Care and Use of Laboratory Animals. All protocols were approved by the Institutional Animal Care and Use Committee of Shandong University.
: Not applicable.
: The authors declare that they have no competing interests.