Funding for this research was provided by:
Swedish University of Agricultural Sciences
Received: 7 January 2022
Accepted: 10 May 2022
First Online: 11 June 2022
: Ethical approval was obtained from the Institutional Research Ethics Review Board, College of Natural Sciences, (CNS-IRB), Addis Ababa University (IRB/022/2016), according to the guidelines set out by the World Medical Association Declaration of Helsinki. Consent from each household head was obtained with assistance of health extension workers, and endorsed by the local administration at district and ´Kebele´ level.
: Not applicable.
: The authors declare that they have no competing interest.