Funding for this research was provided by:
Royal Society of Tropical Medicine and Hygiene (GR000782)
Received: 7 August 2020
Accepted: 12 January 2021
First Online: 29 January 2021
Ethical approval and consent to participate
: The UZ-CHS Birth Cohort study complied with the ethical principles of the Declaration of Helsinki (updated 2013) and was conducted in compliance with the international council for harmonisation of good clinical and laboratory practice guidelines and local regulatory requirements. Ethical approval was obtained from the Joint Research Ethics Committee (JREC) of the University of Zimbabwe, reference number; JREC/18/15 and the Medical Research Council of Zimbabwe; MRCZ/A/1968. Literacy is nearly universal in Zimbabwe [CitationRef removed] and all potential participants were able to read and comprehend the informed consent form. All study participants provided written informed consent. However, in the case of death of the mother, re-consenting was sought from either the father or another family member who assumed legal responsibility for the care and custody of the baby. In the case of a child death, the mother automatically ceased to continue participating in the study.
: Not Applicable.
: Authors have no competing interests.