Informal health sector and routine immunization: making the case for harnessing the potentials of patent medicine vendors for the big catch-up to reduce zero-dose children in sub-S... by Abdu A. Adamu, Abdu A. Adamu, Rabiu I. Jalo, Duduzile Ndwandwe, Charles S. Wiysonge, Charles S. Wiysonge, Charles S. Wiysonge

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COVID-19 and routine childhood immunization in Africa: Leveraging systems thinking and implementation science to improve immunization system performance by Abdu A. Adamu, Rabiu I. Jalo, Desire Habonimana, Charles S. Wiysonge

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Assessing the Implementation Determinants of Pilot Malaria Vaccination Programs in Ghana, Kenya, and Malawi through a Complexity Lens: A Rapid Review Using a Consolidated Framework... by Abdu A. Adamu, Rabiu I. Jalo, Duduzile Ndwandwe, Charles S. Wiysonge

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Positioning implementation science in national immunization programmes to improve coverage equity and advance progress toward Immunization Agenda 2030: An urgent global health impe... by Abdu A. Adamu, Duduzile Ndwandwe, Rabiu I. Jalo, Charles S. Wiysonge

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Using the consolidated framework for implementation research (CFIR) to assess the implementation context of a quality improvement program to reduce missed opportunities for vaccina... by Abdu A. Adamu, Olalekan A. Uthman, Muktar A. Gadanya, Charles S. Wiysonge

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Toward political economy of sustainable financing for immunization in the World Health Organization African Region through a systems thinking lens by Abdu A Adamu, Téné-Alima Essoh, Rabiu I Jalo, Charles S Wiysonge

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Missed Opportunities for Vaccination and Associated Factors among Children Attending Primary Health Care Facilities in Cape Town, South Africa: A Pre-Intervention Multilevel Analys... by Chukwudi A. Nnaji, Charles S. Wiysonge, Abdu A. Adamu, Maia Lesosky, Hassan Mahomed, Duduzile Ndwandwe

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A multilevel analysis of the determinants of missed opportunities for vaccination among children attending primary healthcare facilities in Kano, Nigeria: Findings from the pre-imp... by Abdu A Adamu, Olalekan A Uthman, Muktar A Gadanya, Olatunji O Adetokunboh, Charles S Wiysonge

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Application of quality improvement approaches in health-care settings to reduce missed opportunities for childhood vaccination: a scoping review by Abdu A. Adamu, Olalekan A. Uthman, Elvis O. Wambiya, Muktar A. Gadanya, Charles S. Wiysonge

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Mainstreaming implementation science into immunization systems in the decade of vaccines: A programmatic imperative for the African Region by Abdu A. Adamu, Aishatu L. Adamu, Abdulkarim I. Dahiru, Olalekan A. Uthman, Charles S. Wiysonge

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Exploring the factors contributing to low vaccination uptake for nationally recommended routine childhood and adolescent vaccines in Kenya by Tene-Alima Essoh, Gbadebo Collins Adeyanju, Abdu A. Adamu, Haoua Tall, Aristide Aplogan, Collins Tabu

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Sustainable financing for vaccination towards advancing universal health coverage in the WHO African region: The strategic role of national health insurance by Abdu A. Adamu, Rabiu I. Jalo, Ibrahim D. Muhammad, Téné-Alima Essoh, Duduzile Ndwandwe, Charles S. Wiysonge

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Prevalence and dynamics of missed opportunities for vaccination among children in Africa: applying systems thinking in a systematic review and meta-analysis of observational studie... by Abdu A. Adamu, Ahmed M. Sarki, Olalekan A. Uthman, Alison B. Wiyeh, Muktar A. Gadanya, Charles S. Wiysonge

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Implementation research approaches to promoting universal health coverage in Africa: a scoping review by Chukwudi A. Nnaji, Charles S. Wiysonge, Joseph C. Okeibunor, Thobile Malinga, Abdu A. Adamu, Prosper Tumusiime, Humphrey Karamagi

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Scoping review of African health histories: a protocol by Charles S Wiysonge, Elizabeth O Oduwole, Humphrey Cyprian Karamagi, Abdu A Adamu, Sokona SY, Aminata B W Seydi

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Early Impact of SARS-CoV-2 Pandemic on Immunization Services in Nigeria by Tene-Alima Essoh, Gbadebo Collins Adeyanju, Abdu A. Adamu, Alain Komi Ahawo, Desquith Aka, Haoua Tall, Aristide Aplogan, Charles S. Wiysonge

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Examining enablers of vaccine hesitancy toward routine childhood and adolescent vaccination in Malawi by Gbadebo Collins Adeyanju, Cornelia Betsch, Abdu A. Adamu, Khadijah Sanusi Gumbi, Michael G. Head, Aristide Aplogan, Haoua Tall, Tene-Alima Essoh

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Rural-urban disparities in missed opportunities for vaccination in sub-Saharan Africa: a multi-country decomposition analyses by Abdu A. Adamu, Olalekan A. Uthman, Evanson Z. Sambala, Duduzile Ndwandwe, Alison B. Wiyeh, Tawa Olukade, Ghose Bishwajit, Sanni Yaya, Jean-Marie Okwo-Bele, Charles S. Wiysonge

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Mind the Gap: What explains the education-related inequality in missed opportunities for vaccination in sub-Saharan Africa? Compositional and structural characteristics by Evanson Z. Sambala, Olalekan A. Uthman, Abdu A. Adamu, Duduzile Ndwandwe, Alison B. Wiyeh, Tawa Olukade, Ghose Bishwajit, Sanni Yaya, Jean-Marie Okwo-Bele, Charles S. Wiysonge

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Does it really matter where you live? A multilevel analysis of factors associated with missed opportunities for vaccination in sub-Saharan Africa by Olalekan A. Uthman, Evanson Z. Sambala, Abdu A. Adamu, Duduzile Ndwandwe, Alison B. Wiyeh, Tawa Olukade, Ghose Bishwajit, Sanni Yaya, Jean-Marie Okwo-Bele, Charles S. Wiysonge

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