CLAIM
Study shows myocarditis from COVID-19 vaccination carries serious risk of death
DETAILS
Misrepresents a complex reality: It is mandatory for healthcare workers to report serious adverse events to VAERS regardless of the cause. The studys observation that the majority of VAERS reports were related to hospitalization and death may well have been due to this reporting policy. Multiple studies have shown that the majority of people who develop vaccine-associated myocarditis fully recover without complications. Misleading: Numerous studies have shown that the benefits of COVID-19 vaccines outweigh their risks. It is COVID-19 that is associated with a greater risk of heart problems, blood clotting disorders, and other complications.
KEY TAKE AWAY
Studies have shown that people vaccinated against COVID-19 are less likely to develop severe disease, require hospitalization, and die from COVID-19 compared to unvaccinated people. While COVID-19 vaccines are associated with a slightly elevated risk of myocarditis and a particular blood clotting disorder, it is COVID-19 that is associated with a greater risk of these illnesses and other complications. On balance, the evidence gathered so far by studies shows that the benefits of COVID-19 vaccination outweigh the risks, not the other way around.
It cited the studys conclusion stating that COVID-19 vaccination is strongly associated with a serious adverse safety signal of myocarditis, particularly in children and young adults resulting in hospitalization and death.
Similar claims also appeared in the Washington Times and on X (formerly Twitter). Overall, they received more than 6,800 engagements on social media platforms, including Facebook and X/Twitter.
As we will explain below, the article repeats a host of already-refuted claims and inaccurately portrays the risk of myocarditis posed by COVID-19 vaccination. The study that it relies on also contains important limitations and doesnt provide reliable evidence for its claims.
The study in Therapeutic Advances in Drug Safety was authored by computational biologist Jessica Rose, masters student Nicolas Hulscher, and cardiologist Peter McCullough.
Both Rose and McCullough have previously spread vaccine misinformation. Hulscher, according to his LinkedIn profile, is a masters student in epidemiology at the University of Michigan Ann Arbor. Notably, Hulscher and McCullough co-authored a preprint that claimed 76% of deaths in vaccinated people were due to COVID-19 vaccines. Health Feedback covered the preprints questionable methods and conclusions here.
The stated aim of the study was to determine possible links between COVID-19 vaccination and myocarditis, using reports in the U.S. Vaccine Adverse Event Reporting System (VAERS), particularly associations between age, gender, and dose of vaccine.
Its worth noting that the link between myocarditis and COVID-19 mRNA vaccines was already identified by studies published in 2021. These studies showed that it is young males, particularly adolescents and young adults typically below the age of 30, who are most likely to develop myocarditis, and that myocarditis is most likely to occur after the second dose[1-3].
And myocarditis has since been acknowledged by public health agencies in Europe, the U.S., Australia, and elsewhere, as a potential side effect of COVID-19 mRNA vaccination, particularly in young males.
Rose et al. reported the same trends observed in earlier studies, demonstrated by the following three statements:
This side effect was mostly reported in young individuals, especially males. Myocarditis was more likely following a second dose of vaccine. individuals under the age of 30 were more prone to acquire myocarditis from COVID-19 vaccination compared to those aged 30 and above
It also reported that there were a total of 3,078 reports, or 0.3% of all adverse events, related to myocarditis.
One of the red flags in the study shows up in the authors classification of these events as COVID-19 vaccine-related, despite the fact that VAERS reports alone are insufficient to establish that a case of myocarditis was caused by the vaccine. The same red flag appears in the authors claim that deaths reported to VAERS were also caused by the COVID-19 vaccines.
This is not to say that VAERS reports have no place in determining whether an adverse event could be caused by a vaccine. In fact, VAERS reports were among the data that clued the CDC into the association between myocarditis and COVID-19 mRNA vaccines. But this was only accomplished after additional investigation into the reported cases and statistical analyses.
The authors also postulated that myocarditis cases could present as sudden deaththe language echoing the died suddenly dog whistle used by opponents of COVID-19 vaccination.
To do this, they cited two VAERS reports. One was a 33-year-old male whose death was attributed to myocarditis following an autopsy, and who received his last vaccine dose nearly two years ago.
The other was a 15-year-old male who became significantly ill four days before he diedrendering the authors interpretation of this as a sudden death debatableand whose cause of death was attributed to myocarditis of unknown cause. According to the VAERS report, he received his last vaccine dose roughly a year ago.
However, neither of the cases above are consistent with the pattern of vaccine-induced myocarditis. Studies have observed that the onset of myocarditis symptoms typically begin within the first week after vaccination[2,4], although a range of up to a month has also been observed[5]. The U.S. Centers for Disease Control states that myocarditis due to COVID-19 vaccination most frequently occurs within seven days of vaccination.
Given the very long period of time that had passed since their last vaccine dose and the fact that myocarditis can be caused by multiple things, not just COVID-19 vaccines, the authors seem to have jumped to conclusions in attributing both deaths to COVID-19 vaccination without additional information.
Rose et al. also alleged that myocarditis after vaccination entailed a serious risk of hospitalization and death, based on their finding that 76% of cases resulted in emergency care and hospitalization.
However, this fails to acknowledge that reporting serious adverse events after COVID-19 vaccination, regardless of whether the vaccine caused the adverse event, is mandatory. Per the VAERS website, serious adverse events include Inpatient hospitalization or prolongation of existing hospitalization and death.
The potential skew in reports brought about by this policy, however, wasnt accounted for by the authors.
Contrary to the conclusions of Rose et al., several studies that examined the severity of vaccine-induced myocarditis have found that the majority of patients fully recover without any complications[4,6,7].
Finally, the authors misrepresented a few studies it cited to support its claims. For example, it cited a study by Swank et al. as finding circulating Spike protein among the vaccinated with post-acute sequelae for up to 1 year.
We reached out to the studys corresponding author, David Walt, a professor of pathology at Brigham and Womens Hospital and a core faculty member at Harvards Wyss Institute. In an email, Walt stated that this incorrectly described the studys findings, which was about long COVID patients, not vaccinated people.
He also pointed out that their findings had been mischaracterized by Rose et al., stating It is NOT the full spike protein [detected in vaccinated people], as stated. We found that the S1 fragment of the spike protein is detectable for 3 to 7 days post-vaccination and is undetectable after that.
He clarified that it was in long COVID patients that the spike protein was detected. This is NOT caused by vaccination, but by infection, he said.
He stated that vaccine-induced myocarditis is very rare and that the levels of these proteins (S1 and spike) we are detecting in all our studies are very low. Our test is ultrasensitive. The levels are not at the concentration that would cause systemic inflammation.
The claims in the article are exaggerations, he said.
The claim in the Blaze article that the vaccines never stopped transmission is a refrain that is echoed time and time again by those who oppose COVID-19 vaccination. As Health Feedback explained previously, the claim is an example of the nirvana fallacy, in which a solution is rejected simply because it doesnt work perfectly.
Such an expectation is unrealistic as no vaccine exists that works 100% of the time.
Multiple studies have shown that the COVID-19 vaccines reduce the likelihood of an infected person transmitting the virus to others, such as between people living in the same household[8-13]. The vaccines did so with varying degrees of effectiveness, depending on factors like the variant and the amount of time that had elapsed since the last vaccine dose. Although imperfect, they did reduce transmission.
Secondly, while Sweden, Norway, and Finland did suspend the use of the Moderna COVID-19 vaccine for young men, this can in no way be interpreted to mean Europeans [] have spared their children from the novel vaccines. For one, Sweden, Norway, and Finland dont restrict the use of other COVID-19 vaccines, such as the Pfizer-BioNTech COVID-19 mRNA vaccine. And many other European countries have placed no age restrictions on COVID-19 vaccination in the first place.
The Blaze article relied on the study by Rose et al. to suggest that the risks of the COVID-19 vaccines are greater than its benefits. However, as the study didnt undertake any examination of the benefits of COVID-19 vaccination nor did it make a risk-benefit assessment, it is unequipped to support the suggestion made by The Blaze.
Firstly, studies have shown that people vaccinated against COVID-19 are less likely to develop severe disease, to require hospitalization, and die compared to unvaccinated people[14-16]. Thus, getting vaccinated reduces the risk of COVID-19 complications, which is the primary goal of vaccination.
Secondly, while COVID-19 vaccines are associated with a slightly elevated risk of myocarditis and a particular blood clotting disorder, studies have found that the risk of heart complications, including myocarditis, associated with COVID-19 is greater than that of COVID-19 vaccines[17,18].
Indeed, the incidence of post-vaccine myocarditis has been estimated to be as high as 35.9 per 100,000 people. In contrast, that of post-COVID-19 myocarditis is 64.9 per 100,000 people[19].
The American Heart Association considers the benefits of the COVID-19 vaccines to outweigh their risks. An expert consensus by the American College of Cardiology also found that a very favorable benefit-to-risk ratio exists with the COVID-19 vaccine for all age and sex groups evaluated thus far[20].
Figure 1 There is a favorable benefit-to-risk ratio for COVID-19 mRNA vaccine recipients at highest risk for post-vaccination myocarditis[20].
COVID-19 is also associated with a greater risk of developing other health problems, such as blood clotting disorders[21,22] and neurological problems like fatigue and brain fog[23-25].
Finally, studies so far havent shown that COVID-19 vaccination is associated with a greater risk of all-cause deaths. A CDC study examining the period between December 2020 and July 2021 found a lower non-COVID-19 mortality in vaccinated people compared to unvaccinated people[26]. Another study in more than 520,000 people found that the all-cause mortality was 37% lower in the vaccinated group[27].
On balance, the evidence gathered so far by studies runs counter to the claim made in the Blaze article, showing that the benefits of COVID-19 vaccination outweigh the risks, not the other way around.
The study by Rose et al., used by The Blaze to suggest that myocarditis linked to COVID-19 vaccines carries serious risks, contains important limitations and comes to conclusions that cannot be substantiated by the data it collected. It also grossly misinterpreted at least one study it cited to support its conclusions.
Multiple published studies have shown that the clinical course of COVID-19 vaccine-induced myocarditis is mild for the majority, and contrary to the claims by Rose et al. and The Blaze, dont entail serious risks of hospitalization and death. Studies have also shown that it is COVID-19not COVID-19 vaccinesthat is associated with a greater risk of cardiovascular diseases and other complications. Reliable scientific studies show that the benefits of COVID-19 vaccination outweigh the risks.
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