In a latest data about adverse events emerging from COVID-19 Vaccine jabs released by Canadian health officials on Friday suggests reported cases of rare heart inflammation were relatively higher after Moderna vaccine jabs.
Vaccine safety surveillance data in Canada also suggest relatively higher rates of myocarditis and/or pericarditis reported after Spikevax (Moderna) vaccination.
It is also important to consider that the risk of cardiac complications, including myocarditis, has been shown to be substantially increased following SARS-CoV-2 infection, and that it is higher following infection than after vaccination.
The data also indicated heart inflammation occurs more often in adolescents and adults under 30 years of age, and more often in males.
Moderna Vaccine has a higher chance of creating heart inflammation
The risk of cardiac complications, including heart inflammation, has been shown to be substantially increased following COVID-19 infections, with the risks higher after the infection than after vaccination, according to the statement.
Nationally, the highly contagious Delta Variant of Concern (VOC), accounts for the majority of recently reported cases, is associated with increased severity, and may reduce the effectiveness of vaccines
- Most reported cases, hospitalisations and deaths are occurring among unvaccinated people
- Virus spread in areas with low vaccination coverage presents an ongoing risk for emergence of and replacement by new VOCs, including a risk of VOCs with the ability to evade vaccine protection.
- Cases of myocarditis and/or pericarditis related to vaccines occur more often in adolescents and adults under 30 years of age, more often in males than in females, more often after a second dose of an mRNA vaccine than after a first dose and most occur within seven days of vaccination.
The benefits of mRNA shots in preventing COVID-19 continue to outweigh the risks, regulators in the United States, EU and the World Health Organization have said.