Research Tracker›Biomarker Atlas›PACVS›Circulating spike (post-mRNA myocarditis)

Circulating spike (post-mRNA myocarditis) in PACVS

Circulating spike (post-mRNA myocarditis), also described as Full-length spike, is a spike antigen marker reported as elevated in PACVS (PACVS, PCVS) when patients are compared with Healthy adolescents. Symptom domains tied to this marker in the source include cardiac inflammation post-vaccination. The finding is drawn from Yonker et al. 2023; it describes group-level differences, not a threshold that classifies an individual.

↑ ElevatedSpike Antigen

Summary

Direction in PACVS↑ Elevated — higher than in the comparison group
CategorySpike Antigen
Also described asFull-length spike
Compared againstHealthy adolescents
Associated symptomsCardiac inflammation post-vaccination
Test typeClinical or physiological test
SourceYonker et al. 2023 — doi:10.1161/CIRCULATIONAHA.122.061725
Condition atlasPACVS Biomarker Atlas

Related Spike Antigen markers in PACVS

Full list: PACVS Biomarker Atlas.

Frequently asked questions

Is Circulating spike (post-mRNA myocarditis) high or low in PACVS?

Elevated. Studies summarised in the OSMF atlas report higher Circulating spike (post-mRNA myocarditis) in PACVS than in Healthy adolescents. Source: Yonker et al. 2023.

What symptoms is Circulating spike (post-mRNA myocarditis) associated with in PACVS?

The cited literature associates this marker with Cardiac inflammation post-vaccination. These are population-level associations and do not mean the marker causes the symptoms.

Which test measures Circulating spike (post-mRNA myocarditis)?

It is measured as a clinical or physiological test. Many of the cited studies used research-grade assays, so clinical availability may vary.

Is one abnormal Circulating spike (post-mRNA myocarditis) result diagnostic of PACVS?

No. No single biomarker is diagnostic of PACVS. Circulating spike (post-mRNA myocarditis) findings come from group comparisons, overlap considerably between patients and controls, and vary with study design, timing and comparison group. A result should be interpreted by a clinician alongside symptoms, history and other tests.

Cite this page

Open Source Medicine Foundation. (2026). Circulating spike (post-mRNA myocarditis) in PACVS: direction, evidence and what it means. OSMF Research Tracker. Retrieved October 7, 2026, from https://research.opensourcemed.info/biomarkers/pacvs/circulating-spike-post-mrna-myocarditis.html
Get OSMF research updates. New biomarker, trial and treatment evidence summaries by email.
Subscribe on Substack

Last reviewed: 2026-06-30 · Page generated from pacvs.json · Browse: PACVS atlas · Biomarker Index · All marker pages

Disclaimer: This page is an educational synthesis of published, peer-reviewed research and is not medical advice. Biomarker findings vary across studies with case definitions, comparison groups, timing and assay methods. Direction of change reflects the predominant finding in the cited source and does not establish a diagnostic threshold. Discuss any test result with a qualified clinician.