Received: 11 February 2019
Accepted: 20 September 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: University of Malawi College of Medicine Research and Ethics Committee (COMREC) approved the study (certificate number: P.05/14/1579). A written informed consent was sought from guardians of all eligible children. A verbal consent was sought from health workers as the information collected from them was not considered sensitive. Chikhwawa District Health Office authorised the study to be conducted in the district.
: This does not apply to our study.
: As this research project was part of the MMP research project the authors declare no competing interest.