Publications by authors named "Caryl Feldacker"

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Stakeholder communication and client understanding of viral load suppression in Blantyre, Malawi-What role did U = U play before the flip the script campaign?
Astrid Berner-Rodoreda, Boniface Chione, Esther Ngwira, Rosalia Dambe, Sam Phiri, Caryl Feldacker

PLoS One· December 2025

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Strengthening evidence for text-based telehealth in post-operative care: A pragmatic study of the reach and effectiveness of two-way, text-based follow-up after voluntary medical male circumcision in South Africa.
Caryl Feldacker, Isabella Fabens, Tracy Qi Dong, Khumbulani Moyo, Calsile Makhele

PLoS One· October 2025

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Evaluating the effect of interactive two-way texting on 6-month antiretroviral therapy outcomes: Findings from a randomized controlled trial in Lilongwe, Malawi.
Christine Kiruthu-Kamamia, Robin E Klabbers, Hannock Tweya, Jacqueline Huwa, Agness Thawani, Caryl Feldacker

PLOS Glob Public Health· September 2025

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Integration of a vertical voluntary medical male circumcision program into routine health services in Zimbabwe: A solution for sustainable HIV prevention.
Amanda Marr Chung, Joseph Murungu, Precious Chitapi, Rudo Chikodzore, Peter Case, Caryl Feldacker

PLOS Glob Public Health· July 2025

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When evidence is not enough: A qualitative exploration of healthcare workers' perspectives on expansion of two-way texting (2wT) for post- circumcision follow-up in South Africa.
Isabella Fabens, Calsile Makhele, Nelson Igaba, Khumbulani Moyo, Felex Ndebele, Caryl Feldacker

PLOS Digit Health· June 2025

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"They gave us the right to choose." A qualitative study of preferences for differentiated service delivery location among recipients of antiretroviral therapy at Lighthouse Trust in Lilongwe Malawi.
Lisa Orii, Kate S Wilson, Jacqueline Huwa, Christine Kiruthu-Kamamia, Odala Sande, Caryl Feldacker

PLoS One· May 2025

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Acceptability and feasibility of a mobile electronic medical record system for community-based antiretroviral therapy in Lilongwe, Malawi: A rapid qualitative analysis.
Christine Kiruthu-Kamamia, Astrid Berner-Rodoreda, Gillian O'Bryan, Odala Sande, Jacqueline Huwa, Caryl Feldacker

PLoS One· May 2025

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"If he returns, receive him because he has realized that he needs assistance": A qualitative study exploring preferences for retention on antiretroviral therapy support in Malawi among Lighthouse Clinic clients.
Gillian O'Bryan, Jacqueline Huwa, Odala Sande, Agness Thawani, Astrid Berner-Rodoreda, Caryl Feldacker

PLoS One· May 2025

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Expanding two-way texting for post-operative follow-up: A cost analysis of the implementation and scale-up in routine voluntary medical male circumcision settings in South Africa.
Molly Unsworth, Isabella Fabens, Geoffrey Setswe, Khumbulani Moyo, Jacqueline Pienaar, Caryl Feldacker

PLOS Glob Public Health· April 2025

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Finding the balance between rigour and relevance: implementing adaptations to the implementation of a pragmatic randomised controlled trial of a two-way texting intervention for voluntary medical male circumcision in South Africa.
Geoffrey Setswe, Sarah Day, Felex Ndebele, Jacqueline Pienaar, Vuyolwethu Ncube, Caryl Feldacker

BMJ Open· April 2025

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How much does it cost to retain clients on antiretroviral treatment for one year in a large, public clinic? Routine financial costs of retention interventions at Lighthouse Trust in Lilongwe, Malawi.
Hiwot Weldemariam, Agness Thawani, Christine Kiruthu-Kamamia, Jacqueline Huwa, Mirriam Chipanda, Caryl Feldacker

BMC Res Notes· March 2025

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Looking under the hood of a hybrid two-way texting intervention to improve early retention on antiretroviral therapy in Malawi: an implementation fidelity evaluation.
Robin E Klabbers, Caryl Feldacker, Jacqueline Huwa, Christine Kiruthu-Kamamia, Agness Thawani

Implement Sci· January 2025

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Correction: "We are pleading for the government to do more": Road user perspectives on the magnitude, contributing factors, and potential solutions to road traffic injuries and deaths in Ghana.
Aldina Mesic, Barclay Stewart, Irene Opoku, Bradley H Wagenaar, Bilal Andoh Mohammed, Caryl Feldacker

PLoS One· December 2024

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Strengthening evidence for text-based telehealth in post-operative care: A pragmatic study of the reach and effectiveness of two-way, text-based follow-up after voluntary medical male circumcision in South Africa.
Caryl Feldacker, Isabella Fabens, Tracy Dong, Khumbulani Moyo, Calsile Makhele

medRxiv· December 2024

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Looking under the hood of a hybrid two-way texting intervention to improve early retention on antiretroviral therapy in Malawi: an implementation fidelity evaluation.
Robin Klabbers, Caryl Feldacker, Jacqueline Huwa, Christine Kiruthu-Kamamia, Agness Thawani

Res Sq· December 2024

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Leveraging digital health systems maturity assessments to guide strategic priorities.
Phiona Vumbugwa, Nancy Puttkammer, Moira Majaha, Andrew Likaka, Sonora Stampfly, Caryl Feldacker

J Public Health Afr· December 2024

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Cost-effectiveness analysis of a two-way texting (2wT) intervention to improve ART retention among newly-initiated antiretroviral therapy clients in Malawi.
Christine Kiruthu-Kamamia, Hiwot Weldemariam, Mirriam Chipanda, Jacqueline Huwa, Johnnie Seyani, Caryl Feldacker

Oxf Open Digit Health· December 2024

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What does it cost to expand two-way texting for post-operative follow-up? A cost analysis in routine voluntary medical male circumcision settings in South Africa.
Molly Unsworth, Isabella Fabens, Geoffrey Setswe, Khumbulani Moyo, Jacqueline Pienaar, Caryl Feldacker

medRxiv· November 2024

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WhatsApp Versus SMS for 2-Way, Text-Based Follow-Up After Voluntary Medical Male Circumcision in South Africa: Exploration of Messaging Platform Choice.
Isabella Fabens, Calsile Makhele, Nelson Kibiribiri Igaba, Sizwe Hlongwane, Motshana Phohole, Caryl Feldacker

JMIR Form Res· October 2024

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How much does it cost to retain antiretroviral therapy (ART) clients in their first year? Routine financial costs of retention interventions at Lighthouse Trustin Lilongwe, Malawi.
Hiwot Weldemariam, Agness Thawani, Christine Kiruthu-Kamamia, Jacqueline Huwa, Mirriam Chipanda, Caryl Feldacker

Res Sq· October 2024

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The effect of proactive, interactive, two-way texting on 12-month retention in antiretroviral therapy: Findings from a quasi-experimental study in Lilongwe, Malawi.
Caryl Feldacker, Robin E Klabbers, Jacqueline Huwa, Christine Kiruthu-Kamamia, Agness Thawani

PLoS One· August 2024

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Geospatial analysis of injury severity on major roads in Ghana (2017-2020): implications for targeted injury prevention and control initiatives.
Aldina Mesic, James Damsere-Derry, Caryl Feldacker, Joshua Larley, Irene Opoku

Inj Prev· August 2024

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Identifying emerging hot spots of road traffic injury severity using spatiotemporal methods: longitudinal analyses on major roads in Ghana from 2005 to 2020.
Aldina Mesic, James Damsere-Derry, Caryl Feldacker, Stephen J Mooney, Adam Gyedu

BMC Public Health· June 2024

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"Endless opportunities": A qualitative exploration of facilitators and barriers to scale-up of two-way texting follow-up after voluntary medical male circumcision in Zimbabwe.
Chelsea Elkins, Sandra Kokera, Phiona Vumbugwa, Jacqueline Gavhera, Kathleen M West, Caryl Feldacker

PLoS One· May 2024

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"We are pleading for the government to do more": Road user perspectives on the magnitude, contributing factors, and potential solutions to road traffic injuries and deaths in Ghana.
Aldina Mesic, Barclay Stewart, Irene Opoku, Bradley H Wagenaar, Bilal Andoh Mohammed, Caryl Feldacker

PLoS One· May 2024

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