Funding for this research was provided by:
Key Technologies Research and Development Program (2016YFD0500701)
Received: 16 November 2020
Accepted: 23 March 2021
First Online: 7 April 2021
: The experimental research protocol for monoclonal antibody production in mice was approved by the Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, China, in line with its policies and procedures. All experiments with H7N9 viruses were performed in biosafety level 3 (BSL3) laboratory at South China Agricultural University.
: Not applicable.
: The authors declare that they have no competing interests.