How Long Do COVID-19 Vaccine Components Really Last in the Body?

  • How Long Do COVID-19 Vaccine Components Really Last in the Body?

    Posted by IMA-HelenT on February 18, 2026 at 4:54 pm EST

    Do you remember when mRNA COVID-19 vaccines were first rolled out, a key selling point was their transience? The modified RNA would be translated into spike protein, trigger an immune response, and then be rapidly degraded. Simple, clean, and temporary.

    Individual studies have been challenging that assumption for years: spike protein in blood months after vaccination, mRNA in lymph nodes weeks later, and vaccine components in brain and heart tissue. But until now, no one had pulled all that evidence together in one place.

    Until now, a new systematic review of 20 studies documents COVID-19 vaccine mRNA, spike protein, and lipid nanoparticles persisting in blood and tissues for months to years.

    Of course these findings don’t just apply to COVID-19 vaccines. The same core mRNA technology is being developed for cancer treatments, rare diseases, and influenza. If the assumptions are wrong here, they need to be re-examined everywhere.

    Read the full article: https://imahealth.org/how-long-do-covid-19-vaccine-components-really-last-in-the-body/

    IMA-HelenT replied 2 days, 3 hours ago 2 Members · 3 Replies
  • 3 Replies
  • IMA-HelenT

    Organizer
    February 19, 2026 at 3:54 pm EST
  • pojeda

    Member
    February 19, 2026 at 5:05 pm EST

    I hope there are no more coworkers being diagnosed with pancreatic cancer. 52 yr old male I worked with died last month and a recent retiree was on my floor for a whipple about 6 months ago. I know one who is still getting boosters. Such a disconnect mentally for some despite noticing and speculating about all the young people dying from cancer. I even said it was the covid vaccines which apparently didn’t make an impact in her decision making.

    • IMA-HelenT

      Organizer
      February 20, 2026 at 11:53 am EST

      Such a difficult situation when people you know suffer from cognitive dissonance, and especially when they make a decision, that has a direct effect on their health:

      Cognitive dissonance means that people reduce their discomfort by:

      Dismiss or downplay new evidence

      Reinterpret facts to fit their existing view

      Avoid information that contradicts what they already believe

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