Funding for this research was provided by:
Text and Data Mining valid from 2020-04-29
Received: 3 December 2019
Accepted: 17 April 2020
First Online: 29 April 2020
Ethics approval and consent to participate
: The protocol and informed consent forms for the study were reviewed and ethics approval was granted by the Ethics and Scientific Review Committee of the Africa Medical and Research Foundation (AMREF), Nairobi, Kenya (approval number P116/2013). Permission to conduct the study was granted by the County Departments of Health in Nakuru, Kirinyaga and Embu counties and also from the local health administration. All respondents and guardians were informed of the study procedures and voluntarily participated in the study and provided written informed consent.
: Not applicable.
: MK was supported by the Next Generation Scientist Fellowship Program, Novartis Pharma where she was an intern at the time of undertaking the study. RS, GP and AG were employed by Novartis at the time of this study. The authors declare that they have no other competing interests.