[Asia Economy Reporter Hwang Sumi] A study has found that the Moderna COVID-19 vaccine has a higher likelihood of causing myocarditis than the Pfizer vaccine.
On the 1st (local time), the Public Health Agency of Canada reported, based on vaccination data within the country, that the Moderna vaccine had a higher risk of causing myocarditis compared to the Pfizer vaccine, which is also in the messenger RNA (mRNA) category, according to foreign media reports.
According to the data, in Ontario, Canada, between June and August, males aged 18 to 24 who received the second dose of the Moderna vaccine had a risk of myocarditis and pericarditis of 1 in 5,000. For those vaccinated with Pfizer, the risk of myocarditis was 1 in 28,000.
However, there were no deaths related to these conditions from either vaccine.
Symptoms of myocarditis occurred more frequently in adolescents and adults under 30 years old, and were more common in males than females. Additionally, most individuals who experienced myocarditis had relatively mild symptoms and recovered quickly.
The Public Health Agency of Canada explained, "The risk of cardiac complications, including myocarditis, was higher after COVID-19 infection than after vaccination."
Meanwhile, earlier in June, the U.S. Food and Drug Administration (FDA) officially confirmed that although rare, there is a risk of myocarditis side effects from the Pfizer and Moderna COVID-19 vaccines. According to the FDA, side effects such as myocarditis and pericarditis may rarely occur within days after the second dose of the Pfizer or Moderna vaccines.
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