ReviewVaccines2022
A Systematic Review and a Meta-Analysis of the Yellow Fever Vaccine in the Elderly Population.
Review in Vaccines, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis 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
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Expert consensus on vaccination as a primary prevention strategy for women of reproductive age, pregnant, or adulthoodRevista colombiana de obstetricia y ginecologia · 2025Guideline
- Travel vaccination in senior travelers: current evidence, challenges, and prevention.Tropical diseases, travel medicine and vaccines · 2026Review
- Adverse Events Following Yellow Fever Vaccination in Older Adults in Colombia, 2024-2025: A National Pharmacovigilance Analysis.Vaccines · 2026Article
- Type I IFN autoantibodies underlie chikungunya live-attenuated vaccine encephalitis.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Review
- Pharmacovigilance assessment of adverse events following yellow fever vaccination: Disproportionality analysis of VAERS reports, 2015-2025.Human vaccines & immunotherapeutics · 2025Article
- Fatal Adverse Event After VLA1553 Chikungunya Vaccination in an Elderly Patient: A Case Report From Reunion Island.Open forum infectious diseases · 2025Article
- Identifying and reducing risks of neurological complications associated with vaccination.Nature reviews. Neurology · 2024Review
- Yellow Fever Vaccine-Related Neurotropic Disease in Brazil Following Immunization with 17DD.Vaccines · 2023Article
- Mosquito Vectors (Diptera:Insects · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We conducted a systematic review and a meta-analysis to assess the risk of serious adverse events in the elderly after yellow fever vaccination compared to the non-elderly population. We searched multiple databases and grey literature, and we selected research without language and publication date restrictions. Studies were analyzed in a descriptive way and meta-analyzed and expressed in terms of prevalence ratio and risk ratio with a 95% confidence interval, depending on the degree of heterogeneity found. A total of 18 studies were included and 11 were meta-analyzed. The results obtained through the meta-analysis showed a risk of serious adverse events after yellow fever vaccination three times higher for the elderly when compared to the non-elderly population and five times higher for persons > 70 years. In relation to adverse event types, viscerotropic disease associated with the yellow fever vaccine had a risk that was six times higher when compared to the population < 60 years. The evidence found supports that the vaccine indication in individuals > 60 years of age should be based on a careful analysis of individual benefit-risk assessments. The results found suggest a higher risk of events for individuals > 70 years, especially for viscerotropic and neurotropic disease associated with YFV contraindicating the use of the YFV in this age group.
Indexed as
Identifiers
What Socratic 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 Socratic graph.