Received: 19 July 2021
Accepted: 22 March 2022
First Online: 20 April 2022
: This study was reviewed and approved by the Tropical Diseases Research Centre Ethics Review Committee, the Zambian National Health Research Authority, and the Centers for Disease Control and Prevention (USA). All participants provided written, informed consent prior to participation.All methods and procedures were carried out in accordance with ethical guidelines and regulations.
: As no personal information was used in this analysis, obtaining individual consent was not applicable to this analysis. All information is provided in aggregate without personal identifying information.
: All authors declare no competing interests.