Simbaya, Joseph http://orcid.org/0000-0001-7518-6370
Funjika, Patricia
Moonga, Arthur
Mwale, John
Kankasa, Chipepo
Article History
Received: 9 March 2020
Accepted: 22 November 2021
First Online: 9 December 2021
Declarations
:
: Ethical approval for the study was obtained from the University of Zambia Biomedical Research Ethics Committee (UNZABREC), a local institutional review board (IRB). Additional approvals were obtained from National Health Research Authority and the Zambian Ministry of Health at national, provincial, district and health facility levels. Only children whose biological parents consented were included in the study. Informed written consent was obtained from the biological parents of the infants before the interview. Additional written consent was obtained from the biological parents to draw blood from their infant.
: Not applicable.
: The authors declare that they have no competing interests.