Unvaccinated people threaten the safety of individuals vaccinated against SARS-CoV-2

Unvaccinated people threaten the safety of the vaccinated even when SARS-CoV-2 vaccination rates are high, according to a new modeling study published in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.212105.

"Many opponents of vaccine mandates have framed vaccine adoption as a matter of individual choice," writes Dr. David Fisman, Dalla Lana School of Public Health, University of Toronto, with coauthors. "However, we found that the choices made by people who forgo vaccination contribute disproportionately to risk among those who do get vaccinated."

Researchers used a simple model to explore the effect of mixing between unvaccinated and vaccinated people to understand the dynamics of an infectious disease like SARS-CoV-2. They simulated mixing of like-with-like populations in which people have exclusive contact with others of the same vaccination status as well as random mixing between different groups. When unvaccinated mixed with unvaccinated, the risk to vaccinated people was lower. When vaccinated and unvaccinated people mixed, a substantial number of new infections would occur in vaccinated people, even in scenarios where vaccination rates were high.

The authors' findings remained stable even when they modeled lower levels of vaccine effectiveness for prevention of infection, such as in those who have not received a booster dose or with new SARS-CoV-2 variants. These findings may be relevant to future waves of SARS-CoV-2 or to the behavior of new variants.

"Risk among unvaccinated people cannot be considered self-regarding," the authors write. In other words, forgoing vaccination can't be considered to affect only the unvaccinated, but also those around them. "Considerations around equity and justice for people who do choose to be vaccinated, as well as those who choose not to be, need to be considered in the formulation of vaccination policy," the authors conclude.

Source:
Journal reference:

Fisman, D.N., et al. (2022) Impact of population mixing between vaccinated and unvaccinated subpopulations on infectious disease dynamics: implications for SARS-CoV-2 transmission. Canadian Medical Association Journal. doi.org/10.1503/cmaj.212105.

Comments

  1. Tommy Boye Tommy Boye United States says:

    So, my takeaway from this is: people shouldn't get vaccinated since it puts them at greater risk.
    Yeah, that's some "vaccine" you got there.

  2. Bembo B Bambo Bembo B Bambo United States says:

    Point is: vaccinated people now are the "weaker" ones, aren't they? Sort of a self inflicted wound basically. Nobody believes these new Solons or "priests" of the Vaccine Religion ... why not then talking about Corbevax? No money in that one? What is the proposed solution then? Creating concentration camps or segregarte in a new Apartheid society?  ... Keeping on vaccinating until the 100th shot? These "scientists" are bringing ridiculous to themselves ... these big geniuses will be the quacks of tomorrow as it has always happened and humanity will always find a way to survive them ...

  3. Steve DiSciullo Steve DiSciullo United States says:

    Unvaccinated people who aren't sick with COVID can't hurt anyone. You don't get to just pretend/declare people are sick because they aren't vaccinated. Vaccinated people sometimes can't tell they are sick and so THEY are the ones spreading. The unvaccinated are much more likely to realize they are sick and isolate.

    I've been unvaccinated and well the entire way, unlike millions of "vaccinated" people.
    Vaccinated is a lie, these obviously aren't vaccinations, vaccinations give immunity, these shots don't.

  4. Rudy Kraus Rudy Kraus Canada says:

    A modelling study based total ignorance of the data and the reality. Scotland Health, UK health and Ontario health have all published data showing that the vaccinated are 2 to 6 times more likely to be infected and up to 3 times more likely to die. The boosted are the super spreaders.

  5. Edward Fox Edward Fox Canada says:

    As Robert Malone pointed out for the first time in history the failure of a medicine is being blamed on those who haven't taken it. If the "vaccines" worked we wouldn't be having this conversation. There's a reason the term "died suddenly" has garnered 650 million searches on Google.

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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