OOIR: Observatory of International Research

Papers

(The H4-Index of Vaccine is 51. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
Syncope after live attenuated influenza vaccine: Reports to the Vaccine Adverse Event Reporting System (2003–2024)	238
Reduced cell-mediated immune response in hyperglycemic NOD mice following influenza vaccination	209
Pediatric otitis media in Japan: A nationwide longitudinal study of the pre- and post-pneumococcal conjugate vaccine eras born in 2001 and 2010	157
Corrigendum to ‘A randomised phase 2 immunogenicity and safety study of a MF59-adjuvanted quadrivalent subunit inactivated cell-derived influenza vaccine (aQIVc) in adults aged 50 years and older’ Vac	154
Vaccination during febrile illness, what do we know? A systematic-narrative hybrid review of the literature and international recommendations	114
Humoral and cellular immune responses induced by serogroup W135 meningococcal conjugate and polysaccharide vaccines	102
Cost-effectiveness of anti-viral treatment for infants with RSV disease in the United Kingdom	100
UK healthcare professionals’ attitudes towards the introduction of varicella vaccine into the routine childhood vaccination schedule and their preferences for administration	99
Evaluating concurrency and gaps between self-report and vaccine card data for COVID-19 vaccination	97
Relative effectiveness of homologous NVX-CoV2373 and BNT162b2 COVID-19 vaccinations in South Korea	96
Liposomal co-encapsulation of a novel gemini lipopeptide and a CpG-ODN induces a strong Th1 response with the co-activation of a Th2/Th17 profile and high antibody levels	88
Effectiveness of ten-valent pneumococcal conjugate vaccine on invasive pneumococcal disease among children <2 years old: A prospective population-based study in rural Bangladesh	86
Corrigendum to “I want to chat with a person”: a qualitative longitudinal cohort study in England exploring drivers of sub-optimal childhood vaccination uptake” [Vaccine 62 (2025) 127462]	85
Measles seroprevalence among individuals serologically tested in Ontario, Canada	85
IFITM3-deficient mice as a model for testing influenza virus vaccines via the intramuscular route	82
Assessing vaccination intentions and perceptions among pregnant women in Italy: A multicenter cross-sectional study in the context of mandatory policies and the COVID-19 pandemic	81
Racial and ethnic differences among Mpox vaccination recipients by vaccination facility type in New York City—August–December 2022	80
Vaccine misinformation among Arabic-speakers in Australia and the audience and appetite for a game-based intervention	79
Safety of simultaneous vaccination with COVID-19 vaccines in the Vaccine Safety Datalink	77
Editorial Board/Aims and Scope	77
Uptake of COVID-19 vaccines among healthcare workers and the effect of nudging interventions: A mixed methods study	74
A place for neutrophils in the beneficial pathogen-agnostic effects of the BCG vaccine	72
Knowledge, attitudes, and practices regarding seasonal influenza vaccination during pregnancy in Costa Rica: A mixed-methods study	71
Sublingual immunisation with GBS serotype III capsular polysaccharide-tetanus toxoid conjugate vaccine induces systemic and mucosal antibody responses which are opsonophagocytic and inhibit GBS coloni	70
Integrating the person-centered approach with the study of vaccine hesitancy: Applying latent profile analysis to identify vaccine hesitancy subpopulations and assess their relations with correlates a	70

Parental socioeconomic and psychological determinants of the 2009 pandemic influenza A(H1N1) vaccine uptake in children	69
Pre-implementation evaluation for an HPV vaccine provider communication intervention among primary care clinics	69
“Every interaction you have …should be an opportunity to discuss and offer influenza vaccination”. Health service perspectives on influenza vaccination promotion and delivery to Aboriginal families li	68
Vaccine financing in the Middle East and Africa: An overview from 2010 to 2019	66
Collateral damage from debunking mRNA vaccine misinformation	64
Cost-effectiveness of human papillomavirus vaccination in girls living in Latin American countries: A systematic review and meta-analysis	63
Managing multiplicity in clinical vaccine studies – A case study using a gatekeeping testing strategy	61
Compliance, procrastination and refusal: American COVID-19 vaccination trust and value orientation	61
Pneumonia hospitalization after introduction of pneumococcal conjugate vaccine in Japan: Descriptive study using a nationwide claims database	61
A Phase 1, double-blind, randomized, placebo-controlled study to evaluate the safety and immunogenicity of a tetravalent live attenuated dengue vaccine in adults	60
Corrigendum to “Genotype prevalence and age distribution of human papillomavirus from infection to cervical cancer in Japanese women: A systematic review and meta-analysis” [Vaccine 40(41) (2022) 5971	59
Erratum to “Quadrivalent HPV vaccine effectiveness against anogenital warts: A registry-based study of 2,2 million individuals” [Vaccine 41(37) (2023) 5469-5476]	59
Influenza vaccination in children with pulmonary disease during the COVID-19 pandemic	59
Transient sensory symptoms among first-dose recipients of the BNT162b2 mRNA COVID-19 vaccine: A case-control study	59
Increasing Ebola transmission behaviors 6 months post-vaccination: Comparing vaccinated and unvaccinated populations near 2018 Mbandaka Ebola outbreak in the Democratic Republic of Congo	56
Retesting the hypothesis that early Diphtheria-Tetanus-Pertussis vaccination increases female mortality: An observational study within a randomised trial	56
BBIBP-CorV vaccine effectiveness against COVID-19 in patients aged 60 years and older during the Delta-dominant period in the Federation of Bosnia and Herzegovina, a test-negative case-control study	55
Weaving a public health network: Process and results from an evaluation of CDC’s Prevention Research Centers Vaccine Confidence Network	55
Effectiveness of the varicella vaccine in the real world, a matched case-control study	55
Genetic markers of enhanced functional antibody responses to COVID-19 vaccination	55
Cross-protective efficacy and safety of an adenovirus-based universal influenza vaccine expressing nucleoprotein, hemagglutinin, and the ectodomain of matrix protein 2	52
Use of an adapted participatory learning and action cycle to increase knowledge and uptake of child vaccination in internally displaced persons camps (IVACS): A cluster-randomised controlled trial	52
Influences of sociodemographic characteristics and parental HPV vaccination hesitancy on HPV vaccination coverage in five US states	51
The methodological quality of economic evaluations of measles outbreaks: A systematic review of cost-of-illness studies	51
The increasing age of respiratory syncytial virus-related hospitalisation during COVID-19 pandemic in Lyon was associated with reduced hospitalisation costs	51
Expected endpoints from future chikungunya vaccine trial sites informed by serological data and modeling	51
Epidemiological characteristics and serotype distribution of culture-confirmed pediatric pneumococcal pneumonia before and after PCV 10 introduction, a multicenter study in Bogota, Colombia, 2008–2019	51