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. 2024 Dec 2;24:3356. doi: 10.1186/s12889-024-20855-5

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Barriers and facilitators of PROMISE-EPI intervention through RE-AIM and CFIR frameworks. Legend: Facilitators are in green and barriers in orange; the main elements of the PROMISE-EPI package are in dark yellow and the secondary elements are in light yellow; *Not specifically reported for EPI-2, but for MCH attendance; ** POC for early infant diagnosis was offered to the participants of both arms. VL: Viral load; POC: Point of care; HCP: Health care professionals; ABC/3TC: abacavir/lamivudine