Funding for this research was provided by:
Bill and Melinda Gates Foundation (OOP1148464)
the Natural Science Fund of Hubei Province (2018CFB634)
Received: 5 November 2020
Accepted: 10 January 2021
First Online: 26 January 2021
Ethics approval and consent to participate
: Not applicable.
: All authors consent for publishing this work.
: The authors declare that they have no competing interests.