Funding for this research was provided by:
Grand Challenges Canada ((Grant ID S7 0656-01-10))
Bill and Melinda Gates Foundation ((OPP1060246))
National Commission for Science, Technology and Innovation ((NACOSTI/RCD/ST&I 5th Call MSc 085))
Received: 3 April 2018
Accepted: 23 August 2018
First Online: 31 August 2018
Ethics approval and consent to participate
: Samples were willingly provided by the participating farmers in Eastern Kenya. Permission was sought to obtain samples from the head of each household.
: All authors read and approved the final manuscript.
: The authors declare that they have no competing interests.
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