Funding for this research was provided by:
National Natural Science Foundation of China (81801643)
National Key Program for Infectious Disease of China (2018ZX10731301-005)
Beijing Municipal Science & Technology Commission (Z181100001718005)
Medical Science and Technology Youth Cultivation Program of PLA (16QNP075)
Received: 17 October 2019
Accepted: 18 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: The experiments involving animals were approved by the Animal Ethical Committee of the 8th Medical Center of Chinese PLA General Hospital, and conducted in compliance to the standards of Experimental Animal Regulation Ordinances defined by the China National Science and Technology Commission.
: Not applicable.
: All authors have read and approved the final manuscript and declare that they have no competing interests.