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mRNA-1273 vaccine

MRNA vaccine for COVID-19

Fact-Checks

5 results

Jan 28, 2026

How do myocarditis risks compare after SARS-CoV-2 infection versus mRNA vaccination by age and sex in large cohort studies?

Large cohort meta-analyses and population studies find that is, on average, substantially higher after infection than after mRNA COVID‑19 vaccination, but that risk varies sharply by age, sex, vaccine...

Dec 9, 2025

What large-scale studies have tracked long-term safety of Pfizer and Moderna mRNA vaccines beyond five years?

No large-scale studies with more than five years of follow-up on the original Pfizer-BioNTech (Comirnaty/BNT162b2) or Moderna (Spikevax/mRNA-1273) mRNA COVID-19 vaccines are reported in the supplied s...

Oct 23, 2025

Have there been any recalls or updates to mRNA vaccines due to health concerns after 2022?

Since 2022 there has been of authorized mRNA COVID-19 vaccines, but regulatory updates and market withdrawals of specific products have occurred in some jurisdictions and safety labeling has been revi...

Nov 27, 2025

What are the rates of serious post-vaccine adverse events (myocarditis, VTE, Guillain-Barré) by age, sex, and comorbidity?

Available studies show myocarditis after mRNA COVID-19 vaccines is rare but concentrated in adolescent and young adult males (excess risk up to ~20 per 100,000 doses in some groups), venous thromboemb...

Oct 29, 2025

What is the incidence of myocarditis after Pfizer Covid vaccination in different age groups?

The evidence converges that , with highest attributable risks after the second dose in adolescents and young adults. Systematic reviews and large cohort studies put peak estimates roughly between , wh...