Funding for this research was provided by:
Cooperative research program for agriculture science & technology development (PJ01094401)
Received: 3 February 2020
Accepted: 6 July 2020
First Online: 6 August 2020
Ethics approval and consent to participate
: The challenge study to animals with a live virus was conducted in a biosafety level 2 facility under the approval and supervision of the Institutional Animal Care and Use Committee (IACUC) (KU 18185) of Konkuk University, South Korea in accordance with the guidelines of the Konkuk University IACUC.
: Not applicable.
: The authors declare that there is no conflict of interest.