Funding for this research was provided by:
Received: 20 February 2020
Accepted: 16 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: Ethical clearance was given by Addis Ababa University Department of Medical Laboratory Science departmental research and ethics review committee. Prior to study enrollment, parents of participants gave written informed consent via signature or witnessed thumbprint. Written assent was received when appropriate. Confidentiality of participant identities was ensured during data analysis through the use of numerical identifiers. Electronic data were protected with passwords and hard copies were locked away during and after completion of the study.
: Not Applicable.
: We declare that we do not have any conflicts of interest.