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. 2019 Sep 23;7(3):447–456. doi: 10.9745/GHSP-D-19-00024

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© Werner et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly cited. To view a copy of the license, visit http://creativecommons.org/licenses/by/4.0/. When linking to this article, please use the following permanent link: https://doi.org/10.9745/GHSP-D-19-00024

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graphic file with name 447figu1.jpg — Paul Urioh, a health worker at Mareu Health Center in Tanzania, reviews patient data in Tanzania's electronic immunization registry. © 2015 Trevor Snapp/PATH