Opinion: A Swiss Study Finding 800x Myocarditis Risk from COVID Vaccines? Separating Facts From Fluffs


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We've entered an era where every scientific discovery linked to COVID-19, and its associated vaccines, is pounced upon and magnified through the lens of speculation, often leading to exaggerated headlines. One such claim that has made its rounds recently is that a Swiss study supposedly discovered an 800-fold increase in the risk of myocarditis, an inflammation of the heart muscle, in young adults vaccinated with the Moderna mRNA vaccine.

This study was first presented at the European Society of Cardiology Congress in 2022 by Prof. Christian Müller from Basel University, Switzerland. But it took almost a year for this study to be formally published in a scientific journal, the European Journal of Heart Failure, this month.

But Müller and his team didn't compare the myocarditis rates of vaccinated against unvaccinated individuals. Instead, their research aimed at the detection process. They leveraged a heightened sensitivity method that inevitably discovered more myocarditis cases post-vaccination than what's recorded clinically.

By using blood troponin measurements – a protein released into the bloodstream following heart muscle damage – the team identified that 2.8% of participants had elevated troponin levels after receiving their booster shots. Now, comparing this to previous estimates on vaccine-related myocarditis, this rate seemed 800 times higher.

But here's the catch: Müller's comparison drew from data solely from vaccinated groups. It wasn't a vaccinated vs. unvaccinated scenario. Moreover, the repercussions of these mild myocarditis cases are still in the grey area, so while the results are intriguing, they're far from conclusive.

Müller's research, while groundbreaking, isn't without limitations. For one, the absence of a control group and pre-vaccination baseline troponin levels are severe limitations of the study. Furthermore, the methods used didn't compare myocarditis incidences between COVID-19 patients and vaccinated individuals directly, making direct comparisons challenging. Yet, this research is misused to push the claim that COVID-19 vaccines make you 800-times more likely to get myocarditis.

Enhanced detection methods will inevitably uncover more cases, often asymptomatic ones that do not need clinical attention. If we employed this high-sensitivity approach to COVID-19 patients, the detected myocarditis cases would likely skyrocket, painting an even grimmer picture of the virus.

Müller, in his discussion, emphasized the mild nature of the detected cases and remained an advocate for the vaccine's monumental contribution to global health. In his words, the vaccines have been a bulwark against the pandemic, potentially saving millions.

So, before we let sensationalized headlines sway our perspectives, it's paramount to delve deeper, understand the nuances, and respect the vast landscape of scientific research. As ever, the narrative is richer and more intricate than a single headline can capture.

Moreover, this study did not influence the Swiss Federal Office of Public Health (FOPH) to not recommend COVID-19 vaccines for its residents, including those at heightened risk of severe complications from the virus.

FOPH explained that a majority of the population had either received their vaccinations or had previously contracted and recuperated from COVID-19. So, their immune systems had already encountered the coronavirus. Switzerland, therefore, seems to be championing the role of natural immunity, not because of vaccine safety, in its no-vaccine recommendations.

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