ArticleVaccines2021
Influenza Vaccination and COVID-19 Mortality in the USA: An Ecological Study.
Article in Vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 3 of them syntheses that pooled it.
What it found
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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
77 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Association between influenza vaccination and SARS-CoV-2 infection and its outcomes: systematic review and meta-analysis.Chinese medical journal · 2022Pooled it
- The Association between Influenza Vaccination and the Risk of SARS-CoV-2 Infection, Severe Illness, and Death: A Systematic Review of the Literature.International journal of environmental research and public health · 2020Pooled it
- Obesity Increases the Severity and Mortality of Influenza and COVID-19: A Systematic Review and Meta-Analysis.Frontiers in endocrinology · 2020Pooled it
- Factors associated with outcome in a national cohort of rhinovirus hospitalized patients in Brazil in 2022.Scientific reports · 2024Article
- Influenza Vaccination Mediates SARS-CoV-2 Spike Protein Peptide-Induced Inflammatory Response via Modification of Histone Acetylation.Vaccines · 2024Article
- The Influence of Cross-Reactive T Cells in COVID-19.Biomedicines · 2024Review
- Flu vaccine administration in the period before SARS-CoV-2 infection and its outcomes: An umbrella review.Preventive medicine reports · 2024Review
- Prevalence and factors associated with the death of older people hospitalized due to Covid-19 in the state of Paraná.Revista da Escola de Enfermagem da U S P · 2024Article
- Impact of influenza immunity on the mortality among older adults hospitalized with COVID-19: a retrospective cohort study.Clinical and experimental medicine · 2023Article
- A Cross-Sectional Survey of Knowledge, Attitude, and Practices Regarding Influenza Vaccination Among Jordanians Aged 18-64 Years with Chronic Diseases.Turkish journal of pharmaceutical sciences · 2023Article
- [¿Disminuye la vacunación antigripal el riesgo de COVID-19? Estudio de casos y controles en un centro de Atención Primaria durante el año 2020.]Revista espanola de salud publica · 2023Article
- Lessons drawn from Shanghai for controlling highly transmissible SARS-CoV-2 variants: insights from a modelling study.BMC infectious diseases · 2023Article
- Impact of COVID-19 Outbreak on Influenza and Pneumococcal Vaccination Uptake: A Multi-Center Retrospective Study.Vaccines · 2023Article
- [Epidemiological study on the impact of influenza vaccination on the clinical course of patients with COVID-19 and co-infection by both viruses in Gran Canaria, Spain].Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2023Observational
- Article
- Ethnic disparities in COVID-19 outcomes: a multinational cohort study of 20 million individuals from England and Canada.BMC public health · 2023Article
- Association of dual COVID-19 and seasonal influenza vaccination with COVID-19 infection and disease severity.Vaccine · 2023Article
- An overview on viral interference during SARS-CoV-2 pandemic.Frontiers in pediatrics · 2023Review
- Influenza and Pneumococcal Vaccination and the Risk of COVID-19: A Systematic Review and Meta-Analysis.Diagnostics (Basel, Switzerland) · 2022Review
- Article
17 more citing papers are in PubMed but not listed here.
Corrections and comments
- Update of
Authors and funding
7 authors.
Funding
Abstract
The COVID-19 mortality rate is higher in the elderly and in those with pre-existing chronic medical conditions. The elderly also suffer from increased morbidity and mortality from seasonal influenza infections; thus, an annual influenza vaccination is recommended for them. In this study, we explore a possible county-level association between influenza vaccination coverage in people aged 65 years and older and the number of deaths from COVID-19. To this end, we used COVID-19 data up to 14 December 2020 and US population health data at the county level. We fit quasi-Poisson regression models using influenza vaccination coverage in the elderly population as the independent variable and the COVID-19 mortality rate as the outcome variable. We adjusted for an array of potential confounders using different propensity score regression methods. Results show that, on the county level, influenza vaccination coverage in the elderly population is negatively associated with mortality from COVID-19, using different methodologies for confounding adjustment. These findings point to the need for studying the relationship between influenza vaccination and COVID-19 mortality at the individual level to investigate any underlying biological mechanisms.
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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.