John Wagai

911 total citations
23 papers, 462 citations indexed

About

John Wagai is a scholar working on Modeling and Simulation, Health and Epidemiology. According to data from OpenAlex, John Wagai has authored 23 papers receiving a total of 462 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Modeling and Simulation, 12 papers in Health and 12 papers in Epidemiology. Recurrent topics in John Wagai's work include COVID-19 epidemiological studies (13 papers), Vaccine Coverage and Hesitancy (12 papers) and Virology and Viral Diseases (9 papers). John Wagai is often cited by papers focused on COVID-19 epidemiological studies (13 papers), Vaccine Coverage and Hesitancy (12 papers) and Virology and Viral Diseases (9 papers). John Wagai collaborates with scholars based in Nigeria, United Kingdom and Kenya. John Wagai's co-authors include Mike English, Stephen Ntoburi, Grace Irimu, Annah Wamae, Charles Opondo, Santau Migiro, Newton Opiyo, Philip Ayieko, Aggrey Wasunna and Fred Were and has published in prestigious journals such as PLoS ONE, The Journal of Infectious Diseases and PLoS Medicine.

In The Last Decade

John Wagai

23 papers receiving 442 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
John Wagai Nigeria 10 245 167 109 99 88 23 462
Morris Ogero Kenya 16 228 0.9× 205 1.2× 88 0.8× 40 0.4× 92 1.0× 33 597
Fabio Manenti Italy 14 388 1.6× 143 0.9× 97 0.9× 40 0.4× 56 0.6× 39 581
Soter Ameh Nigeria 14 188 0.8× 184 1.1× 190 1.7× 49 0.5× 71 0.8× 52 685
Pavitra Mohan India 13 364 1.5× 152 0.9× 111 1.0× 60 0.6× 38 0.4× 18 594
Neil McKerrow South Africa 12 200 0.8× 148 0.9× 73 0.7× 33 0.3× 83 0.9× 47 564
Victor Adekanmbi United Kingdom 14 296 1.2× 225 1.3× 141 1.3× 190 1.9× 25 0.3× 29 683
George Mbevi Kenya 12 165 0.7× 156 0.9× 51 0.5× 21 0.2× 60 0.7× 14 381
Theodros Getachew Ethiopia 14 313 1.3× 116 0.7× 109 1.0× 50 0.5× 17 0.2× 52 518
Sima Berendes United Kingdom 14 206 0.8× 221 1.3× 135 1.2× 43 0.4× 50 0.6× 23 613
Tambosi Phiri United Kingdom 13 384 1.6× 209 1.3× 113 1.0× 56 0.6× 34 0.4× 19 642

Countries citing papers authored by John Wagai

Since Specialization
Citations

This map shows the geographic impact of John Wagai's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John Wagai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Wagai more than expected).

Fields of papers citing papers by John Wagai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Wagai. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John Wagai. The network helps show where John Wagai may publish in the future.

Co-authorship network of co-authors of John Wagai

This figure shows the co-authorship network connecting the top 25 collaborators of John Wagai. A scholar is included among the top collaborators of John Wagai based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John Wagai. John Wagai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Schans, Jurjen van der, Samuel Bawa, Balcha Masresha, et al.. (2023). The cost of implementing measles campaign in Nigeria: comparing the stand-alone and the integrated strategy. Health Economics Review. 13(1). 36–36. 5 indexed citations
3.
Wagai, John, Susan Hahné, Stijn de Vos, et al.. (2023). High-Resolution Geospatial Mapping of Zero-Dose and Underimmunized Children Following Nigeria's 2021 Multiple Indicator Cluster Survey/National Immunization Coverage Survey. The Journal of Infectious Diseases. 230(1). e131–e138. 3 indexed citations
4.
Wagai, John, et al.. (2022). Measles outbreak response immunization during the COVID-19 pandemic: lessons from Borno State, Nigeria. Pan African Medical Journal. 41. 104–104. 5 indexed citations
5.
Utazi, C. Edson, Justice Moses K. Aheto, Natalia Tejedor‐Garavito, et al.. (2022). Mapping the distribution of zero-dose children to assess the performance of vaccine delivery strategies and their relationships with measles incidence in Nigeria. Vaccine. 41(1). 170–181. 21 indexed citations
6.
Bawa, Samuel, et al.. (2022). The Role of School Engagement in Increasing Vaccination During Measles Mass Vaccination Campaign in Nigeria, 2018: The Lagos State Experience. Journal of Biomedical Research & Environmental Sciences. 3(3). 268–276. 1 indexed citations
7.
Wagai, John, et al.. (2021). Implementing WHO guidance on conducting and analysing vaccination coverage cluster surveys: Two examples from Nigeria. PLoS ONE. 16(2). e0247415–e0247415. 8 indexed citations
8.
9.
Wagai, John, Richard Luce, Balcha Masresha, et al.. (2021). Measles outbreak in complex emergency: estimating vaccine effectiveness and evaluation of the vaccination campaign in Borno State, Nigeria, 2019. BMC Public Health. 21(1). 437–437. 12 indexed citations
10.
Lokossou, Virgil Kuassi, Issiaka Sombié, Moussiliou Noël Paraïso, et al.. (2021). COVID-19 pandemic in Economic Community of West African States (ECOWAS) region: implication for capacity strengthening at Point of Entry. Pan African Medical Journal. 39. 67–67. 7 indexed citations
11.
Dieng, Boubacar, Samuel Bawa, John Wagai, et al.. (2021). Microplanning verification and 2017/2018 measles vaccination campaign in Nigeria: Lessons learnt. Vaccine. 39. C46–C53. 1 indexed citations
12.
Utazi, C. Edson, John Wagai, Felicity T. Cutts, et al.. (2020). Geospatial variation in measles vaccine coverage through routine and campaign strategies in Nigeria: Analysis of recent household surveys. Vaccine. 38(14). 3062–3071. 41 indexed citations
13.
14.
Opondo, Charles, Philip Ayieko, Stephen Ntoburi, et al.. (2011). Effect of a multi-faceted quality improvement intervention on inappropriate antibiotic use in children with non-bloody diarrhoea admitted to district hospitals in Kenya. BMC Pediatrics. 11(1). 109–109. 27 indexed citations
15.
Gathara, David, Newton Opiyo, John Wagai, et al.. (2011). Quality of hospital care for sick newborns and severely malnourished children in Kenya: A two-year descriptive study in 8 hospitals. BMC Health Services Research. 11(1). 307–307. 38 indexed citations
16.
Ayieko, Philip, Stephen Ntoburi, John Wagai, et al.. (2011). A Multifaceted Intervention to Implement Guidelines and Improve Admission Paediatric Care in Kenyan District Hospitals: A Cluster Randomised Trial. PLoS Medicine. 8(4). e1001018–e1001018. 129 indexed citations
17.
Opondo, Charles, Stephen Ntoburi, John Wagai, et al.. (2009). Are hospitals prepared to support newborn survival? – an evaluation of eight first‐referral level hospitals in Kenya*. Tropical Medicine & International Health. 14(10). 1165–1172. 46 indexed citations
18.
English, Mike, Stephen Ntoburi, John Wagai, et al.. (2009). An intervention to improve paediatric and newborn care in Kenyan district hospitals: Understanding the context. Implementation Science. 4(1). 42–42. 54 indexed citations
19.
Nzinga, Jacinta, Stephen Ntoburi, John Wagai, et al.. (2009). Implementation experience during an eighteen month intervention to improve paediatric and newborn care in Kenyan district hospitals. Implementation Science. 4(1). 45–45. 32 indexed citations
20.
Wagai, John, et al.. (2009). Examining Agreement between Clinicians when Assessing Sick Children. PLoS ONE. 4(2). e4626–e4626. 6 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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