Funding for this research was provided by:
National Natural Science Foundation of China (U1606403)
Agricultural Research Service (8042-31000-107-00D)
Received: 6 February 2020
Accepted: 17 April 2020
First Online: 4 June 2020
: Animal procedures in this study were performed in accordance with the guidelines approved by Institutional Animal Care and Use Committee. All animal management and handling procedures were approved by the Beltsville Area Animal Care and Use Committee (Protocol #17-019 for the pig experiment and #18-027 for the mouse experiment, respectively).
: Not applicable.
: The authors declare that they have no competing interests.