Time For a Myopericarditis-Induced Moratorium on Covid-19 Vaccination in Healthy Children: 2.3% of Thai adolescent schoolchildren (3.5% of males) followed serially after Covid-19 mRNA vaccination developed clinical or subclinical myocarditis/pericarditis

Last June, 6/29/21, Clare Craig and I called for the following U.S. study, with an accompanying moratorium on Covid-19 mRNA vaccination in those under 30 years of age, until the investigation was completed, and the results analyzed:

“Immediately, this summer, controlled one-month longitudinal studies (see “A prospective study of the incidence of myocarditis/pericarditis and new onset cardiac symptoms following smallpox and influenza vaccination”, for example) of the incidence of myopericarditis should be conducted comparing Covid vaccinated and unvaccinated groups under 30 years of age, undergoing serial echocardiography, electrocardiography, and blood cardiac injury markers (notably, troponin). Pending completion of these studies, and rapid analyses of the data, there should be a moratorium on mass Covid vaccination of healthy, extraordinarily low-Covid-risk persons under 30 years old. The FDA’s intention to only continue monitoring is a dereliction of duty.” 

Now that kind of study of Thai adolescent schoolchildren followed serially post Covid-19 mRNA vaccination until 14 days after dose 2, regardless of any symptoms, has been completed. Seven of 301 (7/301, fully 2.3% [rate of 2.3/100]) developed clinical or subclinical myocarditis/ pericarditis! Given all the clinical and subclinical cases occurred in males, that rate is 7/202, or 3.5%!

Cardiologist Anish Koka summarized the findings of the Thai study in a typically pellucid and enlightening blog:

“3/301 children enrolled in the study developed myocarditis or pericarditis. One 16 year old developed clinical myocarditis with a peak cardiac troponin of 593, and 2 others developed pericarditis. All three were admitted to the hospital. While it is not explicitly stated in the study, the child with myocarditis was likely monitored in the intensive care unit prior to being discharged. The one child with myocarditis appears to have had a cardiac MRI which demonstrates acute cardiac inflammation with resolution on 5 month follow up. Enhancement of the myocardium with gadolinium administration, a marker of scar formation, was not present on a 5 month follow up scan….Four children had markers of cardiac injury that were above normal even without overt symptoms and were thus diagnosed as having subclinical myocarditis. (The troponin assay used in the study had a normal value of <14.)”

Dr. Koka added these salient observations, which in my opinion validate what I am calling for: a moratorium on the covid-19 vaccination of healthy children, which indeed is now the national policy of Denmark:

“We should be clear that no one currently knows the long-term significance of the clinical or subclinical myocarditis that is being diagnosed here, but there is little question in an adult population, elevations of cardiac troponin has been shown to be a poor prognostic factor. It is unclear how this relates to pediatric populations, but I don’t quite understand why anyone would want to run this experiment. It’s important to note that the conversations I see now about elevations in troponin are completely at odds with what cardiologists have normally said in a time before the COVID vaccines rolled out. The only time cardiologists have ever minimized troponin elevations in the pre-COVID era was around the performance of cardiac procedures that are associated with these elevations. In these cases, of course, there is something wrong with a patient that needs a procedure, and the most one would say is that the benefits of the procedure outweigh the risks. It is absolutely head-spinning to see that the public conversation now is geared to dismiss cardiac injury in young healthy children as ‘mild’”.

Below are the study flow diagram, and key tabulated results from the Thai study.

Leave a Reply

Your email address will not be published.