Text and Data Mining valid from 2020-01-28
Received: 10 October 2019
Accepted: 20 January 2020
First Online: 28 January 2020
Ethics approval and consent to participate
: The data used in this study was collected and analyzed under a protocol reviewed and approved by the Medical Research Council of Zimbabwe (MRCZ) (MRCZ/A/2118-4 October 2016) and the Chesapeake (Currently Advarra) Institutional Review Board (IRB) in the USA. Since the data used was de-identified and was collected as part of routine program monitoring and evaluation, a waiver from obtaining informed consent was granted by both MRCZ and Advarra.
: Not applicable.
: The authors declare that they have no competing interests.