© 2019 Sikazwe et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notice of Republication This article was republished on 7th August, 2019, to remove S1 Data file which is part of a larger data set which requires additional permission for access. Please download this article again to view the correct version. To request data access, contact the CIDRZ Ethics and Compliance Committee Chair/Chief Scientific Officer, Dr. Roma Chilengi, Roma.firstname.lastname@example.org), or the Secretary to the Committee/Head of Research Operations, Ms. Hope Mwanyungwi, Hope.Mwanyungwi@cidrz.org), mentioning the intended use for the data.