New long‑vax chatter
Social threads pointed to a Feb 2026 Zenodo paper claiming persistence of mRNA, plasmid DNA and spike protein signals years after vaccination, and shared individual case reports alleging prolonged detection 3.5+ years after a Pfizer shot — claims that are circulating but controversial (x.com). At the same time, mainstream guidance is evolving: long COVID definitions, vaccine impact on PASC, and recommendations are under active study and legal/policy review as of March 2026 (ajmc.com) (usatoday.com).
The Feb. 2026 manuscript titled "Unprecedented Persistence of Vaccine mRNA, Plasmid DNA, Spike Protein, and Genomic Dysregulation Over 3.5 Years Post–COVID‑19 mRNA Vaccination" was posted to Zenodo and lists authors including Nicolas Hulscher, John A. Catanzaro and Peter A. McCullough. (zenodo.org) The document presents a single‑patient case (a 55‑year‑old male) and reports the patient underwent more than 100 non‑routine laboratory investigations, over 100 imaging/functional studies and more than 200 outpatient specialty encounters during the multi‑year evaluation. (zenodo.org) Authors state that detections were reproduced across multiple independent laboratories and in multiple biological compartments, but the manuscript is a preprint on Zenodo and has not been peer‑reviewed in a scientific journal. (zenodo.org) Independent commentators and specialist outlets have flagged the study's limits: TrialSiteNews characterized it as "big claims, thin evidence" and recent fact‑check summaries describe the persistence literature as produced by a small but vocal set of papers that remain contested. (trialsitenews.com) A systematic review published in the Future Journal of Pharmaceutical Sciences on Feb. 10, 2026 collated multiple reports of prolonged detection of vaccine‑derived components and called for standardization of detection methods and further study. (link.springer.com) Other research groups cited in the literature include a Yale cohort in which some participants had detectable spike antigen roughly 600–709 days after exposure or vaccination, findings that researchers describe as indicating antigen persistence in subsets but not proof of causation. (factually.co) U.S. policy and clinical guidance are shifting in parallel: an AJMC FAQ (Feb. 26, 2026) summarizes evolving long‑COVID definitions and ongoing study of vaccine impacts, USA Today reported on March 21, 2026 about recent vaccine‑guidance changes, and a federal judge has temporarily paused certain HHS/ACIP vaccine decisions while legal review proceeds. (ajmc.com)
