Funding for this research was provided by:
United States Agency for International Development (AID-OAA-A-13-00080)
Received: 7 February 2020
Accepted: 25 August 2020
First Online: 29 September 2020
Ethics approval and consent to participate
: The study was approved by the research committee of the Sokoine University of Agriculture and the University of California Davis and followed the Institutional Animal Care and Use Committee (IACUC) protocol of University of California Davis (# 20831) to conduct experiments.
: Not applicable.
: The authors declare that they have no competing interests.