Received: 18 June 2020
Accepted: 8 December 2020
First Online: 11 January 2021
Ethics approval and consent to participate
: Ethical clearance certificate was obtained from Tumaini University College Research Ethical Committee with the research number 2330. Permission to conduct research was also obtained from the head of department of pediatrics and child health department at KCMC. Formal written consent was obtained from the parent or guardians of the study participant and we observed confidentiality of the names of the study participants by using code numbers. Those who did not consent received equal right of medical care.
: Not Applicable.
: The authors declare no competing interests.