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Author

John Ndegwa Wagai

Observed names: J. Wagai, J.N. Wagai, John Wagai, Wagai, John
Observed institutions: Kenya Medical Research Institute, World Health Organization, World Health Organization - Nigeria, Nigeria Centre for Disease Control, KEMRI-Wellcome Trust Research Programme, Wellcome Trust
ORCID: 0000-0002-5514-5747
Observed ORCID: 0000-0002-5514-5747
OpenAlex ID: A5011485726
A Multifaceted Intervention to Implement Guidelines and Improve Admission Paediatric Care in Kenyan District Hospitals: A Cluster Randomised Trial
2011 · Philip Ayieko, Stephen Ntoburi, et al. · PLoS Medicine · 165
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Nigeria’s public health response to the COVID-19 pandemic: January to May 2020
2020 · Chioma Dan-Nwafor, Chinwe Lucia Ochu, et al. · Journal of Global Health · 135
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Geospatial variation in measles vaccine coverage through routine and campaign strategies in Nigeria: Analysis of recent household surveys
2020 · C. Edson Utazi, John Wagai, et al. · Vaccine · 68
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Descriptive epidemiology of coronavirus disease 2019 in Nigeria, 27 February–6 June 2020
2020 · K. O. Elimian, C. L. Ochu, et al. · Epidemiology and Infection · 68
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An intervention to improve paediatric and newborn care in Kenyan district hospitals: Understanding the context
2009 · Mike English, Stephen Ntoburi, et al. · Implementation Science · 65
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Are hospitals prepared to support newborn survival? – an evaluation of eight first‐referral level hospitals in Kenya*
2009 · Charles Opondo, Stephen Ntoburi, et al. · Tropical Medicine & International Health · 62
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Quality of hospital care for sick newborns and severely malnourished children in Kenya: A two-year descriptive study in 8 hospitals
2011 · David Gathara, Newton Opiyo, et al. · BMC Health Services Research · 51
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Implementation experience during an eighteen month intervention to improve paediatric and newborn care in Kenyan district hospitals
2009 · Jacinta Nzinga, Stephen Ntoburi, et al. · Implementation Science · 42
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Effect of a multi-faceted quality improvement intervention on inappropriate antibiotic use in children with non-bloody diarrhoea admitted to district hospitals in Kenya
2011 · Charles Opondo, Philip Ayieko, et al. · BMC Pediatrics · 36
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Mapping the distribution of zero-dose children to assess the performance of vaccine delivery strategies and their relationships with measles incidence in Nigeria
2022 · C. Edson Utazi, Justice M.K. Aheto, et al. · Vaccine · 35
Trends in measles incidence and measles vaccination coverage in Nigeria, 2008–2018
2021 · Anne Eudes Jean Baptiste, Balcha Masresha, et al. · Vaccine · 30
Measles outbreak in complex emergency: estimating vaccine effectiveness and evaluation of the vaccination campaign in Borno State, Nigeria, 2019
2021 · Anne Eudes Jean Baptiste, John Wagai, et al. · BMC Public Health · 28
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High-Resolution Geospatial Mapping of Zero-Dose and Underimmunized Children Following Nigeria's 2021 Multiple Indicator Cluster Survey/National Immunization Coverage Survey
2023 · Anne Eudes Jean Baptiste, John Wagai, et al. · The Journal of Infectious Diseases · 27
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Implementing WHO guidance on conducting and analysing vaccination coverage cluster surveys: Two examples from Nigeria
2021 · John Ndegwa Wagai, Dale Rhoda, et al. · PLoS ONE · 16
Combining cluster surveys to estimate vaccination coverage: Experiences from Nigeria’s multiple indicator cluster survey / national immunization coverage survey (MICS/NICS), 2016–17
2020 · Dale A. Rhoda, John Ndegwa Wagai, et al. · Vaccine · 15
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COVID-19 pandemic in Economic Community of West African States (ECOWAS) region: implication for capacity strengthening at Point of Entry
2021 · Virgil Kuassi Lokossou, Aisha Usman, et al. · Pan African Medical Journal · 13
Debating the quality and performance of health systems at a global level is not enough, national debates are essential for progress*
2008 · Stephen Ntoburi, John Wagai, et al. · Tropical Medicine & International Health · 13
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Geospatial Variation in Vaccination Coverage and Zero-Dose Prevalence at the District, Ward and Health Facility Levels Before and After a Measles Vaccination Campaign in Nigeria
2024 · C. Edson Utazi, Iyanuloluwa Olowe, et al. · Vaccines · 11
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Measles outbreak response immunization during the COVID-19 pandemic: lessons from Borno State, Nigeria
2022 · Terna Nomhwange, Abede Mohammed, et al. · Pan African Medical Journal · 10
The cost of implementing measles campaign in Nigeria: comparing the stand-alone and the integrated strategy
2023 · Anne Eudes Jean Baptiste, Jurjen Van der Schans, et al. · Health Economics Review · 9
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Examining Agreement between Clinicians when Assessing Sick Children
2009 · John Wagai, John Senga, et al. · PLoS ONE · 9
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Microplanning verification and 2017/2018 measles vaccination campaign in Nigeria: Lessons learnt
2021 · Maimuna Hamisu, Boubacar Dieng, et al. · Vaccine · 7
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The Role of School Engagement in Increasing Vaccination During Measles Mass Vaccination Campaign in Nigeria, 2018: The Lagos State Experience
2022 · Orefejo Bola, Avuwa Joseph Oteri, et al. · Journal of Biomedical Research & Environmental Sciences · 3
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Leveraging on the 2017/2018 measles vaccination campaign to improve health workers knowledge and practice on injection safety: A case study of north-central states, Nigeria
2021 · Chinedu Okoronkwo, Lydia Abidemi Taiwo, et al. · Vaccine · 2
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Correction: Implementing WHO guidance on conducting and analysing vaccination coverage cluster surveys: Two examples from Nigeria
2021 · John Ndegwa Wagai, Dale A. Rhoda, et al. · PLoS ONE · 1
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Works count: 35
Citation count: 922
H-index: 15
I10-index: 19
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