Funding for this research was provided by:
National Institute for Health Research (16/136/100)
Received: 15 December 2020
Accepted: 19 May 2021
First Online: 11 June 2021
: This study was given ethical approval by Queen Margaret University Edinburgh Research Ethics Committee and by the Office of the Sierra Leone Ethics and Scientific Review Committee, Ministry of Health and Sanitation.
: Not applicable.
: The authors declare that they have no competing interests.