Is it true that only mRNA-vaccinated kids develop myocarditis or pericarditis?! Take a look at the viral claims, and find out what the facts really are!
False claim : Only mRNA-vaccinated kids develop myocarditis or pericarditis!
People are sharing a UK study preprint, while claiming or suggesting that it shows that only mRNA-vaccinated kids get heart inflammation like myocarditis and pericarditis!
Liz Churchill : A study involving 1.7M children has found that myocarditis and pericarditis only appeared in children who took the ‘Covid Vaccines’.
NOT ONE unvaccinated child in the group suffered from these heart-related problems. READ THAT TWICE.
Recommended : Are 3 doses of Pfizer COVID-19 vaccine safe for babies?
Truth : Not only mRNA-vaccinated kids develop myocarditis or pericarditis!
This appears to be yet another example of misinformation about mRNA vaccines, and here are the reasons why…
It’s a pre-print article that has not been peer-reviewed
Let me start by quickly pointing out that the OpenSAFELY study, which you can read here, is a pre-print that has not been peer-reviewed.
While a lack of peer review does not necessarily mean the data or study is irrelevant, it does mean that we should take it with a pinch of salt, because it hasn’t even undergone basic review by another member of the scientific community.
Even peer review is just the first step in the scientific review process, as the people reviewing such papers are not infallible. The lack of a rigorous peer review is arguably why even peer-reviewed and published papers get retracted, like what happened in February and June this year at Cureus.
mRNA vaccines can cause myocarditis / pericarditis
I should also point out that it has been common knowledge (since 2021) that mRNA vaccines for COVID-19 can cause myocarditis and pericarditis as rare side effects – most frequently in adolescents and young adult males.
In fact, the US FDA announced on 25 June 2021, that it revised the patient and provider fact sheets for the Pfizer and Moderna COVID-19 vaccines to include the “increased risks of myocarditis and pericarditis, particularly following the second dose and with onset of symptoms within a few days after vaccination“.
The CDC has also published numerous studies confirming an increased risk of myocarditis and pericarditis after COVID-19 vaccination, noting that most patients responded well to medicine and recovered quickly.
So it is not surprising that the OpenSAFELY study would show that the Pfizer mRNA vaccine for COVID-19 have resulted in cases of myocarditis and pericarditis in kids and adolescents who received it.
Possibly the only useful data from the study is that cases of post-vaccination myocarditis and pericarditis are confirmed to be very rare at:
- just 27 cases per million after the first dose, and
- only 10 cases per million after the second dose.
That’s in the ballpark of earlier studies (example | example) looking at the incidence of post-vaccination myocarditis and pericarditis in adolescents. Again, nothing surprising.
Recommended : Were self-assembling nano-structures found in mRNA vaccines?!
COVID-19 infections cause far more cases of myocarditis
From what I can see, the OpenSAFELY study was not designed to compare the risk of kids and adolescents developing myocarditis / pericarditis, but rather the effectiveness of COVID-19 vaccination in that age group.
Hence, it did not compare the rate of myocarditis and pericarditis between vaccinated and unvaccinated children and adolescents who were infected with COVID-19. That’s important if you really want to study the risk-benefit of vaccines versus natural immunity.
As the US CDC has noted since September 2021, COVID-19 patients have nearly 16X higher risk of developing myocarditis!
During March 2020–January 2021, patients with COVID-19 had nearly 16 times the risk for myocarditis compared with patients who did not have COVID-19, and risk varied by sex and age.
The findings in this report underscore the importance of implementing evidence-based COVID-19 prevention strategies, including vaccination, to reduce the public health impact of COVID-19 and its associated complications.
In short – yes, mRNA vaccines for COVID-19 can cause myocarditis and pericarditis, but the risks are much, MUCH higher with COVID-19 infections!
From a risk-benefit perspective, it is much better to get vaccinated with the mRNA vaccine, because it would not only protect you against hospitalisation and death from COVID-19, it will also help protect you against developing myocarditis from a COVID-19 infection!
Recommended : Did vaccine inventor admit mRNA would depopulate world?!
Large safety studies show vaccines are better + safer
Much larger studies that are actually focused on safety outcomes have shown that COVID-19 vaccinations are far safer and better than relying on natural immunity from COVID-19 infections.
This May 2024 study involving 5.1 million kids in England, showed that unvaccinated children had increased risks of hospitalisation from seven adverse outcomes including MIS-C and myocarditis from COVID-19 infections that were not observed, or were reduced, after COVID-19 vaccination.
This very large 2022 meta-study involving 55.5 million vaccinated people, and 2.5 million unvaccinated people, showed that the risk of developing myocarditis was 7X higher in unvaccinated people who were infected with COVID-19, compared to vaccinated people who were infected with COVID-19.
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