Trial reportThe Lancet. Microbe2023
Dynamics of inflammatory responses after SARS-CoV-2 infection by vaccination status in the USA: a prospective cohort study.
Trial report in The Lancet. Microbe, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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
44 citing papers in PubMed, 74 citations in OpenAlex.
- COVID-19 convalescent plasma therapy decreases inflammatory cytokines: a randomized controlled trial.Microbiology spectrum · 2024Trial
- 12-Lipoxygenase (12-LOX) plays a key role in the hyperinflammatory response caused by SARS-CoV-2.mBio · 2026Article
- Post-vaccine inflammation tracking: validation of a novel individualized digital inflammatory biomarker relative to serum biomarkers.NPJ digital medicine · 2026Article
- Immunosenescence and cytomegalovirus-associated immune signatures on severe acute respiratory syndrome coronavirus 2 booster responses.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026Article
- Potential predictors of COVID-19 disease infection and severity in Egypt.Scientific reports · 2026Article
- Extracellular vesicles are key mediators for direct antigen transport to draining lymph nodes.Molecular therapy : the journal of the American Society of Gene Therapy · 2026Article
- Real-world immune dynamics following COVID-19 vaccination and breakthrough infection: a paired-sample study in Zhejiang Province, China.Frontiers in immunology · 2026Article
- Differential functional immune recall across homologous and heterologous COVID-19 vaccination regimens.Frontiers in immunology · 2026Article
- Article
- Risk of neurological and psychiatric diagnoses in COVID-19 survivors: A multicenter retrospective cohort study using electronic health records.World journal of psychiatry · 2025Article
- Vaccination protects against COVID-associated pulmonary fibrin deposition.Journal of virology · 2025Article
- Tanshinone I Enhances the Pulmonary Immune Response of CD8Biomedicines · 2025Article
- Strong immunogenicity and protection against SARS-CoV-2 in hamsters induced by heterologous boost vaccination with an MVA-based COVID-19 vaccine candidate.The Journal of general virology · 2025Article
- Inflammation among kidney transplant donors with and without HIV: Multicenter HOPE in Action Consortium.Clinical immunology (Orlando, Fla.) · 2025Article
- IL-2 and IL-7 Contribution to Immune Response: Effects of Vaccination Against COVID-19 in Adults.Viruses · 2025Article
- Impact of vaccination on the development of acute kidney injury in Japanese COVID-19 patients: a retrospective observational analysis.Clinical and experimental nephrology · 2025Observational
- Prognostic Impact of Vaccination, Comorbidity, and Inflammatory Biomarkers on Clinical Outcome in Hospitalized Patients with COVID-19.Biomedicines · 2025Article
- Central nervous system and systemic inflammatory networks associated with acute neurological outcomes in COVID-19.Scientific reports · 2025Article
- COVID-19 disease severity in language minorities in Finland: an observational population-based register study.BMC public health · 2025Observational
- Impact of unequal testing on vaccine effectiveness estimates across two study designs: a simulation study.Nature communications · 2025Article
Corrections and comments
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Authors and funding
48 authors at 20 institutions in 1 country.
Funding
Abstract
backgroundCytokines and chemokines play a critical role in the response to infection and vaccination. We aimed to assess the longitudinal association of COVID-19 vaccination with cytokine and chemokine concentrations and trajectories among people with SARS-CoV-2 infection.
methodsIn this longitudinal, prospective cohort study, blood samples were used from participants enrolled in a multi-centre randomised trial assessing the efficacy of convalescent plasma therapy for ambulatory COVID-19. The trial was conducted in 23 outpatient sites in the USA. In this study, participants (aged ≥18 years) were restricted to those with COVID-19 before vaccination or with breakthrough infections who had blood samples and symptom data collected at screening (pre-transfusion), day 14, and day 90 visits. Associations between COVID-19 vaccination status and concentrations of 21 cytokines and chemokines (measured using multiplexed sandwich immunoassays) were examined using multivariate linear mixed-effects regression models, adjusted for age, sex, BMI, hypertension, diabetes, trial group, and COVID-19 waves (pre-alpha or alpha and delta).
findingsBetween June 29, 2020, and Sept 30, 2021, 882 participants recently infected with SARS-CoV-2 were enrolled, of whom 506 (57%) were female and 376 (43%) were male. 688 (78%) of 882 participants were unvaccinated, 55 (6%) were partly vaccinated, and 139 (16%) were fully vaccinated at baseline. After adjusting for confounders, geometric mean concentrations of interleukin (IL)-2RA, IL-7, IL-8, IL-15, IL-29 (interferon-λ), inducible protein-10, monocyte chemoattractant protein-1, and tumour necrosis factor-α were significantly lower among the fully vaccinated group than in the unvaccinated group at screening. On day 90, fully vaccinated participants had approximately 20% lower geometric mean concentrations of IL-7, IL-8, and vascular endothelial growth factor-A than unvaccinated participants. Cytokine and chemokine concentrations decreased over time in the fully and partly vaccinated groups and unvaccinated group. Log
interpretationInitially and during recovery from symptomatic COVID-19, fully vaccinated participants had lower concentrations of inflammatory markers than unvaccinated participants suggesting vaccination is associated with short-term and long-term reduction in inflammation, which could in part explain the reduced disease severity and mortality in vaccinated individuals.
fundingUS Department of Defense, National Institutes of Health, Bloomberg Philanthropies, State of Maryland, Mental Wellness Foundation, Moriah Fund, Octapharma, HealthNetwork Foundation, and the Shear Family Foundation.
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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.