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E. Usuf · SciRah

Researcher profile · Semantic Scholar

E. Usuf

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E. Usuf — researcher profile on SciRah

h-index: 21
Works: 66
Citations: 1,554

Most-cited papers

Carriage of Streptococcus pneumoniae and Other Respiratory Bacterial Pathogens in Low and Lower-Middle Income Countries: A Systematic Review and Meta-Analysis
R. Adegbola, R. DeAntonio, P. C. Hill, Anna Roca +3 more
2014PLoS ONE197 citations Open access
Semantic Scholar
COVID-19 pandemic in west Africa
Melisa Martinez-Alvarez, A. Jarde, E. Usuf, H. Brotherton +7 more
2020Lancet Global Health183 citations Open access
Semantic Scholar
Effect of the introduction of pneumococcal conjugate vaccination on invasive pneumococcal disease in The Gambia: a population-based surveillance study
G. Mackenzie, P. Hill, D. Jeffries, I. Hossain +38 more
2016Lancet. Infectious Diseases (Print)181 citations Open access
Semantic Scholar
Impact of the introduction of pneumococcal conjugate vaccination on pneumonia in The Gambia: population-based surveillance and case-control studies
G. Mackenzie, P. Hill, Shah M Sahito, D. Jeffries +44 more
2017Lancet. Infectious Diseases (Print)89 citations Open access
Semantic Scholar
Pneumococcal Carriage in Sub-Saharan Africa—A Systematic Review
E. Usuf, C. Bottomley, R. Adegbola, A. Hall
2014PLoS ONE85 citations Open access
Semantic Scholar
A Novel Framework for Phenotyping Children With Suspected or Confirmed Infection for Future Biomarker Studies
R. Nijman, R. Oostenbrink, H. Moll, C. Casals-Pascual +29 more
2021Frontiers in Pediatrics50 citations Open access
Semantic Scholar
Persistence of Nasopharyngeal Pneumococcal Vaccine Serotypes and Increase of Nonvaccine Serotypes Among Vaccinated Infants and Their Mothers 5 Years After Introduction of Pneumococcal Conjugate Vaccine 13 in The Gambia
E. Usuf, C. Bottomley, E. Bojang, Isatou Cox +5 more
2018Clinical Infectious Diseases48 citations Open access
Semantic Scholar
Impact of the introduction of pneumococcal conjugate vaccination on invasive pneumococcal disease and pneumonia in The Gambia: 10 years of population-based surveillance
G. Mackenzie, P. Hill, D. Jeffries, M. Ndiaye +45 more
2021Lancet. Infectious Diseases (Print)47 citations Open access
Semantic Scholar
Upper airways colonisation of Streptococcus pneumoniae in adults aged 60 years and older: A systematic review of prevalence and individual participant data meta-analysis of risk factors
Emma L. Smith, India Wheeler, H. Adler, D. Ferreira +24 more
2020Journal of Infection44 citations Open access
Semantic Scholar
Monitoring the Introduction of Pneumococcal Conjugate Vaccines into West Africa: Design and Implementation of a Population-Based Surveillance System
G. Mackenzie, I. Plumb, S. Sambou, Debasish Saha +15 more
2012PLoS Medicine44 citations Open access
Semantic Scholar
Seroprevalence surveys in sub-Saharan Africa: what do they tell us?
E. Usuf, A. Roca
2021Lancet Global Health42 citations Open access
Semantic Scholar
Vaccine wastage in The Gambia: a prospective observational study
E. Usuf, G. Mackenzie, Lamin Ceesay, D. Sowe +2 more
2018BMC Public Health30 citations Open access
Semantic Scholar
A multi-platform approach to identify a blood-based host protein signature for distinguishing between bacterial and viral infections in febrile children (PERFORM): a multi-cohort machine learning study.
H. Jackson, J. Zandstra, Stephanie Menikou, M. S. Hamilton +35 more
2023The Lancet Digital Health26 citations Open access
Semantic Scholar
Dexamethasone for COVID-19: data needed from randomised clinical trials in Africa
H. Brotherton, E. Usuf, Behzad Nadjm, K. Forrest +6 more
2020Lancet Global Health26 citations Open access
Semantic Scholar
Pneumococcal carriage in rural Gambia prior to the introduction of pneumococcal conjugate vaccine: a population‐based survey
E. Usuf, H. Badji, A. Bojang, S. Jarju +4 more
2015Tropical medicine & international health25 citations
Semantic Scholar
Costs of vaccine delivery in the Gambia before and after, pentavalent and pneumococcal conjugate vaccine introductions.
E. Usuf, Grant A. Mackenzie, Y. Lowe-Jallow, B. Boye +3 more
2014Vaccine25 citations
Semantic Scholar
The economic burden of childhood pneumococcal diseases in The Gambia
E. Usuf, G. Mackenzie, S. Sambou, D. Atherly +1 more
2016Cost Effectiveness and Resource Allocation24 citations Open access
Semantic Scholar
Relationship between molecular pathogen detection and clinical disease in febrile children across Europe: a multicentre, prospective observational study
P. Shah, M. Voice, L. Calvo-Bado, I. Rivero-Calle +46 more
2023The Lancet Regional Health - Europe22 citations Open access
Semantic Scholar
Community-acquired Invasive Bacterial Disease in Urban Gambia, 2005–2015: A Hospital-based Surveillance
S. Darboe, U. Okomo, A. Muhammad, B. Ceesay +14 more
2019Clinical Infectious Diseases22 citations Open access
Semantic Scholar
Long-term Impact of Oral Azithromycin Taken by Gambian Women During Labor on Prevalence and Antibiotic Susceptibility of Streptococcus pneumoniae and Staphylococcus aureus in Their Infants: Follow-up of a Randomized Clinical Trial
A. Bojang, B. Camara, Isatou Jagne Cox, C. Oluwalana +6 more
2018Clinical Infectious Diseases22 citations Open access
Semantic Scholar
Diagnosis of Multisystem Inflammatory Syndrome in Children by a Whole-Blood Transcriptional Signature
H. Jackson, L. Miglietta, D. Habgood-Coote, Giselle D'Souza +48 more
2023Journal of the Pediatric Infectious Diseases Society21 citations Open access
Semantic Scholar
Biomarkers for the Discrimination of Acute Kawasaki Disease From Infections in Childhood
J. Zandstra, A. van de Geer, M. Tanck, Diana van Stijn-Bringas Dimitriades +25 more
2020Frontiers in Pediatrics20 citations Open access
Semantic Scholar
Hospital-based Surveillance for Pediatric Bacterial Meningitis in the Era of the 13-Valent Pneumococcal Conjugate Vaccine in Ghana
L. Renner, E. Usuf, N. Mohammed, D. Ansong +16 more
2019Clinical Infectious Diseases19 citations Open access
Semantic Scholar
Intense and Mild First Epidemic Wave of Coronavirus Disease, The Gambia
B. Abatan, O. Agboghoroma, Fatai Akemoke, M. Antonio +43 more
2021Emerging Infectious Diseases18 citations Open access
Semantic Scholar
Maternal pneumococcal nasopharyngeal carriage and risk factors for neonatal carriage after the introduction of pneumococcal conjugate vaccines in The Gambia.
E. Usuf, A. Bojang, B. Camara, I. Jagne +4 more
2017Clinical Microbiology and Infection16 citations Open access
Semantic Scholar
Etiology of Bacterial Meningitis Among Children <5 Years Old in Côte d’Ivoire: Findings of Hospital-based Surveillance Before and After Pneumococcal Conjugate Vaccine Introduction
Catherine Boni-cisse, S. Jarju, R. Bancroft, N. A. Lepri +12 more
2019Clinical Infectious Diseases15 citations Open access
Semantic Scholar
Persistent and emerging pneumococcal carriage serotypes in a rural Gambian community after ten years of pneumococcal conjugate vaccine pressure.
E. Usuf, Bottomley Christian, R. Gladstone, E. Bojang +9 more
2020Clinical Infectious Diseases14 citations Open access
Semantic Scholar
Potential cost-effectiveness of a maternal Group B streptococcal vaccine in The Gambia.
N. Ahmed, K. Giorgakoudi, E. Usuf, U. Okomo +4 more
2020Vaccine14 citations Open access
Semantic Scholar
Immunity to Streptococcus pyogenes and Common Respiratory Viruses at Age 0 to 4 Years After COVID-19 Restrictions
K. Dokal, S. Channon-Wells, C. Davis, D. Estrada-Rivadeneyra +55 more
2025JAMA Network Open13 citations Open access
Semantic Scholar
Declining Trends of Pneumococcal Meningitis in Gambian Children After the Introduction of Pneumococcal Conjugate Vaccines
B. Sanneh, C. Okoi, M. Grey-Johnson, Haddy Bah-Camara +13 more
2019Clinical Infectious Diseases12 citations Open access
Semantic Scholar
Quantifying excess mortality during the COVID-19 pandemic in 2020 in The Gambia: a time-series analysis of three health and demographic surveillance systems
N. Mohammed, G. Mackenzie, E. Ezeani, Mamadi Sidibeh +13 more
2022International Journal of Infectious Diseases11 citations Open access
Semantic Scholar
COVID-19 reinfections in The Gambia by phylogenetically distinct SARS-CoV-2 variants—first two confirmed events in west Africa
B. Sanyang, A. Kanteh, E. Usuf, Behzad Nadjm +18 more
2021Lancet Global Health11 citations Open access
Semantic Scholar
Prevalence and risk factors for Staphylococcus aureus nasopharyngeal carriage during a PCV trial
A. Bojang, L. Kendall, E. Usuf, U. Egere +5 more
2017BMC Infectious Diseases11 citations Open access
Semantic Scholar
Validation of the Emergency Department-Paediatric Early Warning Score (ED-PEWS) for use in low- and middle-income countries: A multicentre observational study
Naomi Kemps, Natanael Holband, N. Boeddha, A. Faal +12 more
2024PLOS Global Public Health10 citations Open access
Semantic Scholar
Plasma Protein Biomarkers Distinguish Multisystem Inflammatory Syndrome in Children From Other Pediatric Infectious and Inflammatory Diseases
S. Yeoh, D. Estrada-Rivadeneyra, H. Jackson, I. Keren +31 more
2024The Pediatric Infectious Disease Journal10 citations Open access
Semantic Scholar
Raising AWaRe-ness of Antimicrobial Stewardship Challenges in Pediatric Emergency Care: Results from the PERFORM Study Assessing Consistency and Appropriateness of Antibiotic Prescribing Across Europe
L. Kolberg, A. Khanijau, F. V. D. van der Velden, J. Herberg +33 more
2023Clinical Infectious Diseases10 citations Open access
Semantic Scholar
Circulation of respiratory viruses during the COVID-19 pandemic in The Gambia
S. Jarju, E. Senghore, H. Brotherton, Lucy Affleck +19 more
2022medRxiv10 citations Open access
Semantic Scholar
Clinical research on COVID-19: perceptions and barriers to participation in The Gambia
B. Diallo, E. Usuf, Omar M. Ceesay, Umberto D'Alessandro +2 more
2022BMJ Global Health10 citations Open access
Semantic Scholar
Febrile illness in high-risk children: a prospective, international observational study
Fabian J. S. van der Velden, G. de Vries, Alexander J. Martin, E. Lim +30 more
2022European Journal of Pediatrics10 citations Open access
Semantic Scholar
Establishing and operating a ‘virtual ward’ system to provide care for patients with COVID-19 at home: experience from The Gambia
O. Wariri, U. Okomo, C. Cerami, E. Okoh +17 more
2021BMJ Global Health10 citations Open access
Semantic Scholar
Implementation of Recommendations on the Use of Corticosteroids in Severe COVID-19
F. Camirand-Lemyre, L. Merson, B. T. Tirupakuzhi Vijayaraghavan, Aidan Burrell +10 more
2023JAMA Network Open9 citations Open access
Semantic Scholar
Pneumococcal conjugate vaccination in The Gambia: health impact, cost effectiveness and budget implications
C. Pecenka, E. Usuf, I. Hossain, S. Sambou +3 more
2021BMJ Global Health9 citations Open access
Semantic Scholar
Nasopharyngeal colonization of Gambian infants by Staphylococcus aureus and Streptococcus pneumoniae before the introduction of pneumococcal conjugate vaccines
E. Usuf, A. Bojang, P. C. Hill, C. Bottomley +2 more
2015new microbes and new infections8 citations Open access
Semantic Scholar
Strengthening Research Ethics Capacity in West Africa, 2015–2024
Kyle Ferguson, C. Adebamowo, A. Adejumo, T. Ogundiran +25 more
2025Journal of Empirical Research on Human Research Ethics6 citations
Semantic Scholar
Impact of pneumococcal conjugate vaccination on pneumococcal nasopharyngeal carriage in the Gambia: Population-based cross-sectional surveys
Grant A. Mackenzie, I. Hossain, R. Salaudeen, H. Badji +5 more
2024Vaccine6 citations Open access
Semantic Scholar
Biobanking and consenting to research: a qualitative thematic analysis of young people’s perspectives in the North East of England
F. V. D. van der Velden, E. Lim, Lily Gills, Jasmin Broadey +362 more
2023BMC Medical Ethics6 citations Open access
Semantic Scholar
Long-term immunogenicity and immune memory response to the hepatitis B antigen in the RTS,S/AS01E malaria vaccine in African children: a randomized trial
I. Valéa, S. Adjei, E. Usuf, O. Traoré +23 more
2020Human Vaccines & Immunotherapeutics5 citations Open access
Semantic Scholar
African women working in global health: closing the gender gap in Africa?
A. Roca, U. Okomo, E. Usuf, E. Oriero +3 more
2018Lancet Global Health5 citations Open access
Semantic Scholar
An assessment of vaccine wastage in the Solomon Islands
Ibrahim Dadari, Laura Ropiti, Aven Patson, Philip Okia +6 more
2022PLOS Global Public Health4 citations Open access
Semantic Scholar
External validation of a multivariable prediction model for identification of pneumonia and other serious bacterial infections in febrile immunocompromised children
Alexander J. Martin, F. V. D. van der Velden, U. von Both, M. Tsolia +29 more
2023Archives of Disease in Childhood3 citations Open access
Semantic Scholar

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