ReviewLancet (London, England)2021
Challenges in ensuring global access to COVID-19 vaccines: production, affordability, allocation, and deployment.
Review in Lancet (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 644 papers, 8 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
644 citing papers in PubMed, 8 syntheses or guidelines pooled it, 1,328 citations in OpenAlex.
- Mpox vaccine acceptance and uptake in Africa: a systematic review and meta-analysis.BMC global and public health · 2026Pooled it
- Vaccine equity in Africa: a rapid review of policy, legal and governance frameworks to improve research and development.Frontiers in health services · 2026Pooled it
- MPOX outbreak in Africa: the urgent need for local manufacturing of the vaccine and decolonized health systems.BMC public health · 2025Pooled it
- Advancing Health Care With Digital Twins: Meta-Review of Applications and Implementation Challenges.Journal of medical Internet research · 2025Pooled it
- Association of gross domestic product with equitable access to childhood vaccines in 195 countries: a systematic review and meta-analysis.BMJ global health · 2025Pooled it
- Acceptance-Hesitancy of COVID-19 Vaccination and Factors Affecting It in Adults: Systematic Review Study.Immunity, inflammation and disease · 2024Pooled it
- Vaccine hesitancy in context of COVID-19 in East Africa: systematic review and meta-analysis.BMC public health · 2024Pooled it
- Association of dietary inflammatory index and the SARS-CoV-2 infection incidence, severity and mortality of COVID-19: a systematic review and dose-response meta-analysis.Nutrition journal · 2024Pooled it
- Interim analysis of a phase 1 randomized clinical trial on the safety and immunogenicity of the mRNA-1283 SARS-CoV-2 vaccine in adults.Human vaccines & immunotherapeutics · 2023Trial
- Efficacy and Safety of a Protein-Based SARS-CoV-2 Vaccine: A Randomized Clinical Trial.JAMA network open · 2023Trial
- Beyond seeking information: Lessons learned from a qualitative investigation of the information practices of parents about COVID-19 vaccination in Canada.Human vaccines & immunotherapeutics · 2026Article
- mRNA vaccines and therapeutics beyond COVID-19: A review of the global clinical development landscape, low- and middle-income countries involvement and relevance to their contexts.Human vaccines & immunotherapeutics · 2026Review
- Article
- Global Viral Lower Respiratory Disease Episodes, Hospitalisations, and Clinical Outcomes by Aetiology, 2010-2021.Infectious diseases and therapy · 2026Article
- Economic factors promoting vaccine nationalism in the face of viral evolution.PLoS computational biology · 2026Article
- Review
- Global disparities in regulatory approval of prophylactic vaccines, 2005-2024.Journal of global health · 2026Article
- Emerging Viral Zoonoses: Epidemiology, Vaccination Strategies, and Implications for Global Public Health.Vaccines · 2026Review
- Preformulated, Shelf-Stable, Dendritic Cell-Targeting Nanogel mRNA Vaccine Delivery Platform.Bioconjugate chemistry · 2026Article
- Informing life-course immunization and pandemic preparedness: a COVID-19 vaccine evaluation and HPV introduction experience in Sierra Leone.BMC public health · 2026Article
584 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 4 countries.
Funding
Abstract
The COVID-19 pandemic is unlikely to end until there is global roll-out of vaccines that protect against severe disease and preferably drive herd immunity. Regulators in numerous countries have authorised or approved COVID-19 vaccines for human use, with more expected to be licensed in 2021. Yet having licensed vaccines is not enough to achieve global control of COVID-19: they also need to be produced at scale, priced affordably, allocated globally so that they are available where needed, and widely deployed in local communities. In this Health Policy paper, we review potential challenges to success in each of these dimensions and discuss policy implications. To guide our review, we developed a dashboard to highlight key characteristics of 26 leading vaccine candidates, including efficacy levels, dosing regimens, storage requirements, prices, production capacities in 2021, and stocks reserved for low-income and middle-income countries. We use a traffic-light system to signal the potential contributions of each candidate to achieving global vaccine immunity, highlighting important trade-offs that policy makers need to consider when developing and implementing vaccination programmes. Although specific datapoints are subject to change as the pandemic response progresses, the dashboard will continue to provide a useful lens through which to analyse the key issues affecting the use of COVID-19 vaccines. We also present original data from a 32-country survey (n=26 758) on potential acceptance of COVID-19 vaccines, conducted from October to December, 2020. Vaccine acceptance was highest in Vietnam (98%), India (91%), China (91%), Denmark (87%), and South Korea (87%), and lowest in Serbia (38%), Croatia (41%), France (44%), Lebanon (44%), and Paraguay (51%).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.