Funding for this research was provided by:
Ministero degli Affari Esteri e della Cooperazione Internazionale (AID 011330)
Received: 12 November 2020
Accepted: 19 March 2021
First Online: 9 April 2021
: The study was approved by the Ethical Clearance Committee of Oromia Regional Health Bureau. Written informed consent was sought for literate individuals aged 18 years or more and from a parent or carer for younger individuals. In addition, assent was sought from all participants under 18 years of age. Verbal consent was sought from illiterate participants and participants who cannot read in the Oromyffa language. For these participants, a written confirmation of verbal consent from a witness elected by the study participant was sought.
: Not applicable
: MA has received research funding from Seqirus. The funding is not related to COVID-19. All other authors declare that they have no competing interests.