Funding for this research was provided by:
National Major Scientific and Technological Special Project for“Significant New Drugs Development
Foundation for the National Institutes of Health (R01 AI138203, R01 AI109317)
Article History
Received: 3 July 2020
Revised: 11 July 2020
Accepted: 27 July 2020
First Online: 25 August 2020
Competing interests
: The authors declare no competing interests.