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All Profiles

Dr Oghenebrume Wariri

Call Career Development Fellowship (CDF)
Programme EDCTP2
Start Date 2020-11-01
End Date 2023-07-31
Project Code TMA2019CDF-2734
Status Active

Title

Evaluating the impact of sociodemographic and geographic access to immunization service points on TIMEliness and deLaYs of infant vaccinations in The Gambia (TIMELY)

Host Organisation

Institution Country
Medical Research Council (MRC) Unit - The Gambia Gambia

Current Organisation

MRC Unit The Gambia at London School of Hygiene and Tropical Medicine

Current Job Title

Clinical Research fellow

Awards

2020 EDCTP Career Development Fellowship (CDF)
2020 Global Health Clinical Research Training Fellowship at Imperial College London (funded by the Wellcome Trust)

Memberships

Role Committee/board Start Date End Date
Topic Editor Frontiers in Health Services Research 2022

Education

Institution Degree Year
West African College of Physicians, Nigeria FWACP (Paed) 2021-01-11
University of Aberdeen, United Kingdom MSc 2016-11-24
University of Benin, Nigeria MBBS 2008-11-24
London School of Hygiene and Tropical Medicine, United Kingdom PhD 2024-01-08

Grants

Mapping the spatial clustering of delayed infant vaccinations in The Gambia: exploring the role of geographic access to immunization service points
Grant Code:
RSRO_P67869
Source of funding:
Wellcome Trust
Amount:
61922.42
Role:
Principal Investigator
Start Date:
2020-01-01
End Date:
2021-01-01

Publications

“What will my child think of me if he hears I gave him HIV?”: a sequential, explanatory, mixed-methods approach on the predictors and experience of caregivers on disclosure of HIV status to infected children in Gombe, Northeast Nigeria
Authors:
Date:
2020-03-01
Journal:
BMC Public Health
Content:
Using a mixed-methodology approach, we explored the experiences of caregivers in disclosing HIV status to children living with HIV in Nigeria
Identifiers:
DOI: 10.1186/s12889-020-08506-x
Part of ISSN: 1471-2458
Trends in obesity by socioeconomic status among non-pregnant women aged 15–49 y: a cross-sectional, multi-dimensional equity analysis of demographic and health surveys in 11 sub-Saharan Africa countries, 1994–2015
Authors:
Oghenebrume Wariri , author
Jacob Albin Korem Alhassan , author
Godwin Mark , author
Oyinkansola Adesiyan , author
Lori Hanson , author
Date:
2021-09-03
Journal:
International Health
Content:
Identifiers:
DOI: 10.1093/inthealth/ihaa093
COVID-19 vaccine hesitancy amongst healthcare workers: An assessment of its magnitude and determinants during the initial phase of national vaccine deployment in Nigeria
Authors:
Terna Nomhwange, Oghenebrume Wariri, Esin Nkereuwem, Scholastica Olanrewaju, Ngozi Nwosu, Usman Adamu, Ezekiel Danjuma, Nneka Onuaguluchi, Joseph Enegela, Erdoo Nomhwange, Anne Eudes Jean Baptiste, Walter Kazadi Mulombo
Date:
2022-08-01
Journal:
eClinical Medicine
Content:

Background
While vaccination plays a critical role in the global response to the COVID-19 pandemic, vaccine rollout remains suboptimal in Nigeria and other Low- and Middle-income countries (LMICs). This study documents the level of hesitancy among health workers (HWs) during the initial COVID-19 vaccine deployment phase in Nigeria and assesses the magnitude and determinants of hesitancy across Nigeria.

Methods
A cross sectional study across all States in Nigeria was conducted with over 10,000 HWs interviewed between March and April 2021. Data were cleaned and analyzed with proportions and confidence intervals of hesitancy documented and stratification by HW category. We compared the level of confidence/acceptance to be vaccinated across Nigeria and documented the sources of negative information amongst HWs who refused the vaccine.

Findings
Among the 10 184 HWs interviewed, 9 369 [92% (95% CI= 91, 92)] were confident of the COVID-19 vaccines and were already vaccinated at the time of this survey. Compared to HWs who were less than 20 years old, those aged 50 – 59 years were significantly more confident of the COVID-19 vaccines and had been vaccinated (OR=3.8, 95% CI=2.3 – 6.4, p<0.001). Only 858 (8%) of the HWs interviewed reported being hesitant with 57% (479/858) having received negative information, with the commonest source of information from social media (43.4%.)

Interpretation
A vast majority of HWs who were offered COVID-19 vaccines as part of the first phase of national vaccine roll out were vaccinated and reported being confident of the COVID-19 vaccines. The reported hesitancy was due mainly to safety issues, and negative information about vaccines from social media. The issues identified remain a significant risk to the success of subsequent phases of the vaccine rollout in Nigeria.

Identifiers:
HTTPS://DOI.ORG/10.1016/J.ECLINM.2022.101499: not informed
Population and Individual-Level Double Burden of Malnutrition Among Adolescents in Two Emerging Cities in Northern and Southern Nigeria: A Comparative Cross-Sectional Study
Authors:
Date:
2020-12-14
Journal:
Annals of Global Health
Content:
Identifiers:
DOI: 10.5334/aogh.3093
Part of ISSN: 2214-9996
Access to skilled attendant at birth and the coverage of the third dose of diphtheria-tetanus-pertussis vaccine across 14 West African countries – an equity analysis
Authors:
Jacob Albin Korem Alhassan , author
Oghenebrume Wariri , author
Egwu Onuwabuchi , author
Godwin Mark , author
Yakubu Kwarshak , author
Eseoghene Dase , author
Date:
2020-12-01
Journal:
International Journal for Equity in Health
Content:
Identifiers:
DOI: 10.1186/s12939-020-01204-5
Tracking the uptake and trajectory of COVID-19 vaccination coverage in 15 West African countries: an interim analysis
Authors:
Muhammed Olanrewaju Afolabi , author
Oghenebrume Wariri , author
Yauba Saidu , author
Akaninyene Otu , author
Semeeh Akinwale Omoleke , author
Bassey Ebenso , author
Adekola Adebiyi , author
Michael Ooko , author
Bright Opoku Ahinkorah , author
Edward Kwabena Ameyaw , author
Abdul-Aziz Seidu , author
Emmanuel Agogo , author
Terna Nomhwange , author
Kolawole Salami , author
Nuredin Ibrahim Mohammed , author
Sanni Yaya , author
Date:
2021-12-01
Journal:
BMJ Global Health
Content:
Identifiers:
DOI: 10.1136/bmjgh-2021-007518
Initiating a participatory action research process in the Agincourt health and socio–demographic surveillance site
Authors:
Date:
2017-06-01
Journal:
Journal of Global Health
Content:
Identifiers:
DOI: 10.7189/jogh.07.010413
Part of ISSN: 2047-2978
ISSN: 2047-2986
Corrigendum: Clinical Protocol for a Longitudinal Cohort Study Employing Systems Biology to Identify Markers of Vaccine Immunogenicity in Newborn Infants in The Gambia and Papua New Guinea.
Authors:
Olubukola T Idoko
Kinga K Smolen
Oghenebrume Wariri
Abdulazeez Imam
Casey P Shannon
Tida Dibassey
Joann Diray-Arce
Alansana Darboe
Julia Strandmark
Rym Ben-Othman
Oludare A Odumade
Kerry McEnaney
Nelly Amenyogbe
William S Pomat
Simon van Haren
Guzmán Sanchez-Schmitz
Ryan R Brinkman
Hanno Steen
Robert E W Hancock
Scott J Tebbutt
Peter C Richmond
Anita H J van den Biggelaar
Tobias R Kollmann
Ofer Levy
Al Ozonoff
Professor Beate Kampmann
Date:
2020-11-17
Journal:
Frontiers in Pediatrics
Content:
Identifiers:
PMC: PMC7707081
PMID: 33313031
DOI: 10.3389/fped.2020.610461
Part of ISSN: 2296-2360
WOSUID: WOS:000594709300001
SOURCE-WORK-ID: 154743
Discriminative ability of adiposity measures for elevated blood pressure among adolescents in a resource-constrained setting in northeast Nigeria: a cross-sectional analysis
Authors:
Oghenebrume Wariri , author
Iliya Jalo , author
Fidelia Bode-Thomas , author
Date:
2018-12-01
Journal:
BMC Obesity
Content:
Identifiers:
DOI: 10.1186/s40608-018-0211-7
Clinical Protocol for a Longitudinal Cohort Study Employing Systems Biology to Identify Markers of Vaccine Immunogenicity in Newborn Infants in The Gambia and Papua New Guinea
Authors:
Date:
2020-04-30
Journal:
Frontiers in Pediatrics
Content:
Identifiers:
DOI: doi.org/10.3389/fped.2020.00197
A scorecard of progress towards measles elimination in 15 west African countries, 2001–19: a retrospective, multicountry analysis of national immunisation coverage and surveillance data
Authors:
Date:
Journal:
Content:
Identifiers:
Trends in clinical trial registration in sub-Saharan Africa between 2010 and 2020: a cross-sectional review of three clinical trial registries
Authors:
Bassey Edem , author
Chukwuemeka Onwuchekwa , author
Oghenebrume Wariri , author
Esin Nkereuwem , author
Oluwatosin O. Nkereuwem , author
Victor Williams , author
Date:
2021-12-01
Journal:
Trials
Content:
Identifiers:
DOI: 10.1186/s13063-021-05423-1
The influence of travel time to health facilities on stillbirths: A geospatial case-control analysis of facility-based data in Gombe, Nigeria
Authors:
Oghenebrume Wariri , author
Frank T. Spradley , editor
Egwu Onuwabuchi , author
Jacob Albin Korem Alhassan , author
Eseoghene Dase , author
Iliya Jalo , author
Christopher Hassan Laima , author
Halima Usman Farouk , author
Aliyu U. El-Nafaty , author
Uduak Okomo , author
Winfred Dotse-Gborgbortsi , author
Date:
2021-01-07
Journal:
PLOS ONE
Content:
Identifiers:
DOI: 10.1371/journal.pone.0245297
A scorecard of progress towards measles elimination in 15 west African countries, 2001-19: a retrospective, multicountry analysis of national immunisation coverage and surveillance data
Authors:
Date:
2021-01-01
Journal:
The Lancet Global Health
Content:
Identifiers:
COVID-19 reinfections in The Gambia by phylogenetically distinct SARS-CoV-2 variants—first two confirmed events in west Africa
Authors:
Date:
2021-07-01
Journal:
The Lancet Global Health
Content:
Identifiers:
DOI: 10.1016/s2214-109x(21)00213-8
Part of ISSN: 2214-109X
Establishing and operating a ‘virtual ward’ system to provide care for patients with COVID-19 at home: experience from The Gambia
Authors:
Oghenebrume Wariri , author
Uduak Okomo , author
Carla Cerami , author
Emmanuel Okoh , author
Francis Oko , author
Hawanatu Jah , author
Kalifa Bojang , author
Bubacarr Susso , author
Yekini Olatunji , author
Esin Nkereuwem , author
Fatai Momodou Akemokwe , author
Modou Jobe , author
Orighomisan Freda Agboghoroma , author
Bunja Kebbeh , author
Ghata Sowe , author
Thomas Gilleh , author
Naffie Jobe , author
Effua Usuf , author
Ed Clarke , author
Helen Brotherton , author
Karen Forrest , author
Date:
2021-06-01
Journal:
BMJ Global Health
Content:
Identifiers:
DOI: 10.1136/bmjgh-2021-005883
Rethinking collaboration: developing a learning platform to address under-five mortality in Mpumalanga province, South Africa
Authors:
Lucia D’Ambruoso , author
Maria van der Merwe , author
Oghenebrume Wariri , author
Peter Byass , author
Gerhard Goosen , author
Kathleen Kahn , author
Sparara Masinga , author
Victoria Mokoena , author
Barry Spies , author
Stephen Tollman , author
Sophie Witter , author
Rhian Twine , author
Date:
2019-07-01
Journal:
Health Policy and Planning
Content:
Identifiers:
DOI: 10.1093/heapol/czz047
Timeliness of routine childhood vaccination in 103 low-and middle-income countries, 1978–2021: A scoping review to map measurement and methodological gaps
Authors:
Oghenebrume Wariri
Date:
2022-07-14
Journal:
Plos Global Public Health
Content:

Empiric studies exploring the timeliness of routine vaccination in low-and middle-income countries (LMICs) have gained momentum in the last decade. Nevertheless, there is emerging evidence suggesting that these studies have key measurement and methodological gaps that limit their comparability and utility. Hence, there is a need to identify, and document these gaps which could inform the design, conduct, and reporting of future research on the timeliness of vaccination. We synthesised the literature to determine the methodological and measurement gaps in the assessment of vaccination timeliness in LMICs. We searched five electronic databases for peer-reviewed articles in English and French that evaluated vaccination timeliness in LMICs, and were published between 01 January 1978, and 01 July 2021. Two reviewers independently screened titles and abstracts and reviewed full texts of relevant articles, following the guidance framework for scoping reviews by the Joanna Briggs Institute. From the 4263 titles identified, we included 224 articles from 103 countries. China (40), India (27), and Kenya (23) had the highest number of publications respectively. Of the three domains of timeliness, the most studied domain was ‘delayed vaccination’ [99.5% (223/224)], followed by ‘early vaccination’ [21.9% (49/224)], and ‘untimely interval vaccination’ [9% (20/224)]. Definitions for early (seven different definitions), untimely interval (four different definitions), and delayed vaccination (19 different definitions) varied across the studies. Most studies [72.3% (166/224)] operationalised vaccination timeliness as a categorical variable, compared to only 9.8% (22/224) of studies that operationalised timeliness as continuous variables. A large proportion of studies [47.8% (107/224)] excluded the data of children with no written vaccination records irrespective of caregivers’ recall of their vaccination status. Our findings show that studies on vaccination timeliness in LMICs has measurement and methodological gaps. We recommend the development and implement of guidelines for measuring and reporting vaccination timeliness to bridge these gaps

Identifiers:
HTTPS://DOI.ORG/10.1371/JOURNAL.PGPH.0000325: not informed
Tracking coverage, dropout and multidimensional equity gaps in immunisation systems in West Africa, 2000–2017
Authors:
Oghenebrume Wariri , author
Bassey Edem , author
Esin Nkereuwem , author
Oluwatosin O Nkereuwem , author
Gregory Umeh , author
Ed Clark , author
Olubukola T Idoko , author
Terna Nomhwange , author
Beate Kampmann , author
Date:
2019-09-01
Journal:
BMJ Global Health
Content:
Identifiers:
DOI: 10.1136/bmjgh-2019-001713
SIMPLE INDIRECT MEASURES OF ADIPOSITY ARE DISCRIMINATORY OF ELEVATED BLOOD PRESSURE: A CROSS SECTIONAL ANALYSIS AMONG ADOLESCENTS IN A RESOURCE-POOR SETTING IN NORTHEAST NIGERIA
Authors:
Oghenebrume Wariri
I Jalo
F Bode-Thomas
Date:
2019-09-01
Journal:
Transactions of the Royal Society of Tropical Medicine and Hygiene
Content:
Identifiers:
Part of ISSN: 0035-9203
WOSUID: WOS:000493064400016
SOURCE-WORK-ID: 155167
Conducting clinical research in a resource-constrained setting: lessons from a longitudinal cohort study in The Gambia
Authors:
Abdulazeez Imam , author
Oghenebrume Wariri , author
Tida Dibbasey , author
Abdoulie Camara , author
Anthony Mendy , author
Assan N Sanyang , author
Masaneh Ceesay , author
Samba Jallow , author
Abdoulie E Jallow , author
Kaddijatou Bah , author
Njilan Johnson , author
Ebrima Trawally , author
Dawda Sowe , author
Alansana Darboe , author
Beate Kampmann , author
Olubukola T Idoko , author
Date:
2021-08-01
Journal:
BMJ Global Health
Content:
Identifiers:
DOI: 10.1136/bmjgh-2021-006419
Prevalence and distribution pattern of malaria and soil-transmitted helminth co-endemicity in sub-Saharan Africa, 2000–2018: A geospatial analysis
Authors:
Muhammed O Afolabi, Adekola Adebiyi, Jorge Cano, Benn Sartorius, Brian Greenwood, Olatunji Johnson, Oghenebrume Wariri
Date:
2022-09-30
Journal:
Plos Neglected Tropical Diseases
Content:

Background
Limited understanding exists about the interactions between malaria and soil-transmitted helminths (STH), their potential geographical overlap and the factors driving it. This study characterised the geographical and co-clustered distribution patterns of malaria and STH infections among vulnerable populations in sub-Saharan Africa (SSA).

Methodology/Principal findings
We obtained continuous estimates of malaria prevalence from the Malaria Atlas Project (MAP) and STH prevalence surveys from the WHO-driven Expanded Special Project for the Elimination of NTDs (ESPEN) from Jan 1, 2000, to Dec 31, 2018. Although, MAP provides datasets on the estimated prevalence of Plasmodium falciparum at 5km x 5km fine-scale resolution, we calculated the population-weighted prevalence of malaria for each implementation unit to ensure that both malaria and STH datasets were on the same spatial resolution. We incorporated survey data from 5,935 implementation units for STH prevalence and conducted the prevalence point estimates before and after 2003. We used the bivariate local indicator of spatial association (LISA analysis) to explore potential co-clustering of both diseases at the implementation unit levels among children aged 2–10 years for P. falciparum and 5–14 years for STH, living in SSA.

Our analysis shows that prior to 2003, a greater number of SSA countries had a high prevalence of co-endemicity with P.falciparium and any STH species than during the period from 2003–2018. Similar prevalence and distribution patterns were observed for the co-endemicity involving P.falciparum-hookworm, P.falciparum-Ascaris lumbricoides and P.falciparum-Trichuris trichiura, before and after 2003.

We also observed spatial variations in the estimates of the prevalence of P. falciparum-STH co-endemicity and identified hotspots across many countries in SSA with inter-and intra-country variations. High P. falciparum and high hookworm co-endemicity was more prevalent in West and Central Africa, whereas high P. falciparum with high A. lumbricoides and high P. falciparum with high T. trichiura co-endemicity were more predominant in Central Africa, compared to other sub-regions in SSA.

Conclusions/Significance
Wide spatial heterogeneity exists in the prevalence of malaria and STH co-endemicity within the regions and within countries in SSA. The geographical overlap and spatial co-existence of malaria and STH could be exploited to achieve effective control and elimination agendas through the integration of the vertical control programmes designed for malaria and STH into a more comprehensive and sustainable community-based paradigm.

Identifiers:
HTTPS://DOI.ORG/10.1371/JOURNAL.PNTD.0010321: not informed
Timeliness of routine childhood vaccination in low- and middle-income countries, 1978–2021: Protocol for a scoping review to map methodologic gaps and determinants
Authors:
Oghenebrume Wariri , author
Charles Shey Wiysonge , editor
Uduak Okomo , author
Yakubu Kevin Kwarshak , author
Kris A. Murray , author
Chris Grundy , author
Beate Kampmann , author
Date:
2021-06-17
Journal:
PLOS ONE
Content:
Identifiers:
DOI: 10.1371/journal.pone.0253423
A scorecard of progress towards measles elimination in 15 west African countries, 2001-19: a retrospective, multicountry analysis of national immunisation coverage and surveillance data.
Authors:
Date:
2021-03-01
Journal:
The Lancet. Global health
Content:

Background

The WHO Regional Office for the Africa Regional Immunization Technical Advisory Group, in 2011, adopted the measles control and elimination goals for all countries of the African region to achieve in 2015 and 2020 respectively. Our aim was to track the current status of progress towards measles control and elimination milestones across 15 west African countries between 2001 and 2019.

Methods

We did a retrospective multicountry series analysis of national immunisation coverage and case surveillance data from Jan 1, 2001, to Dec 31, 2019. Our analysis focused on the 15 west African countries that constitute the Economic Community of West African States. We tracked progress in the coverage of measles-containing vaccines (MCVs), measles supplementary immunisation activities, and measles incidence rates. We developed a country-level measles summary scorecard using eight indicators to track progress towards measles elimination as of the end of 2019. The summary indicators were tracked against measles control and elimination milestones.

Findings

The weighted average regional first-dose MCV coverage in 2019 was 66% compared with 45% in 2001. 73% (11 of 15) of the west African countries had introduced second-dose MCV as of December, 2019. An estimated 4 588 040 children (aged 12-23 months) did not receive first-dose MCV in 2019, the majority (71%) of whom lived in Nigeria. Based on the scorecard, 12 (80%) countries are off-track to achieving measles elimination milestones; however, Cape Verde, The Gambia, and Ghana have made substantial progress.

Interpretation

Measles will continue to be endemic in west Africa after 2020. The regional measles incidence rate in 2019 was 33 times the 2020 elimination target of less than 1 case per million population. However, some hope exists as countries can look at the efforts made by Cape Verde, The Gambia, and Ghana and learn from them.

Funding

None.
Identifiers:
PMID: 33607028
PMC: PMC7900524
DOI: 10.1016/s2214-109x(20)30481-2
Voices in the wilderness: how exclusionist article processing charge policies of academic journals underscore what is wrong with global health
Authors:
Bassey Edem , author
Esin Nkereuwem , author
Oghenebrume Wariri , author
Date:
2021-09-01
Journal:
The Lancet Global Health
Content:
Identifiers:
DOI: 10.1016/S2214-109X(21)00262-X
The use of a speaking book® to enhance vaccine knowledge among caregivers in The Gambia: A study using qualitative and quantitative methods
Authors:
Oluwatosin O Nkereuwem , author
Sonali Kochhar , author
Oghenebrume Wariri , author
Penda Johm , author
Amie Ceesay , author
Mamanding Kinteh , author
Beate Kampmann , author
Date:
2021-03-01
Journal:
BMJ Open
Content:
Identifiers:
DOI: 10.1136/bmjopen-2020-040507
Applying the WHO ICD-PM classification system to stillbirths in a major referral Centre in Northeast Nigeria: a retrospective analysis from 2010-2018
Authors:
Eseoghene Dase , author
Oghenebrume Wariri , author
Egwu Onuwabuchi , author
Jacob A. K. Alhassan , author
Iliya Jalo , author
Nazeem Muhajarine , author
Uduak Okomo , author
Aliyu U. ElNafaty , author
Date:
2020-12-01
Journal:
BMC Pregnancy and Childbirth
Content:
Identifiers:
DOI: 10.1186/s12884-020-03059-8
Intense and Mild First Epidemic Wave of Coronavirus Disease, The Gambia
Authors:
Date:
2021-06-23
Journal:
Emerging Infectious Diseases
Content:
Identifiers:
DOI: 10.3201/eid2708.204954

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