According to the authors of a study published April 29 on the preprint server medRxiv, people who received two doses of Pfizer’s COVID-19 vaccine were more likely to die within a year from cardiac arrest, COVID-19 and all other causes than those who received two doses of Moderna’s vaccine.
Researchers from the Massachusetts Institute of Technology (MIT) and the Florida Department of Health conducted the study, using data from the Florida Department of Health. The study comprised of adult Florida residents who completed a two-dose series of either BNT162b2 or mRNA-1273 between December 2020 and August 2021. The researchers matched vaccine recipients 1:1 across seven criteria.
Retsef Levi, Ph.D., the study’s first author, speaking to The Defender said;
The Pfizer vaccinees had significantly higher all-cause, cardiovascular, COVID-19 and non-COVID-19 mortality over 12 months post dose two.
Another author, Florida Surgeon General Joseph Ladapo, said on X
The study authors compared the mortality outcomes for 735,050 noninstitutionalized adults in Florida who received two doses of the Pfizer COVID-19 vaccine to the mortality outcomes for 735,050 adults who received the Moderna vaccine.
The study focused on what’s called “nonspecific” effects from mRNA COVID-19 vaccines. Nonspecific effects refer to outcomes from a vaccine other than the vaccine’s specific target outcome. Levi explained:
The COVID-19 vaccines aim to reduce infections, mortality and severe illness from SARS-CoV-2 infections. However, like other vaccines, they may have other effects on the recipient’s health … beyond the specific target of the vaccine. For example, the vaccine may protect against another illness or increase the risk of a cardiac arrest or mortality.
The results reiterate the necessity of considering non-specific vaccine effects, and specifically all-cause mortality, when evaluating vaccines.
The authors did statistical analyses to ensure that the difference in mortality outcomes between those who received Pfizer’s shot and those who received Moderna’s shot wasn’t due to something other than vaccine type. However;
Robustness analysis and negative control outcomes show no indication of meaningful unobserved confounding differences between the two cohorts.
Further, they noted that the increase in mortality risk was highest among vaccine recipients over age 60.
They just looked at the Pfizer and Moderna jabs and not the Astra Zeneca or the J&J jab. The study didn’t look at those who were unvaccinated.
Back in January 2024, Ladapo had called for a “halt in the use of COVID-19 mRNA vaccines” over safety concerns that the mRNA technology is delivering DNA contaminants into people’s cells.
In relation to this latest study Trial Site News reported that the study;
has reignited the debate over the comparative safety of mRNA COVID-19 vaccines [and] raises urgent safety questions, [particularly about Pfizer’s shot.]
It should be noted that the study has yet to undergo peer-review. Nonetheless the analysis, involving as it does over 1.4 million carefully matched individuals, adds weight to a growing body of observational research probing potential non-specific effects of vaccines.
