![]() "One must keep in mind that the alternative of getting an infection with COVID-19 probably also involves a risk of inflammation in the heart muscle," Hviid said. "Our findings do not generally overshadow the many benefits that come with being vaccinated," study author Anders Hviid said in a statement. The authors said the discrepancy could be explained by the average age of the vaccinated population, time span between the first and second shot or because fewer Danes had tested positive for COVID-19. Pfizer-BioNTech's vaccine was only associated with a higher risk of heart inflammation among women, the study said, contrasting with the results of the studies from Israel and the United States. Most of the cases had been mild, the study said. ![]() The researchers found only 1 case per 71,400 vaccinated with Pfizer-BioNTech and 1 case per 23,800 vaccinated with Moderna. "In general, the rate of myocarditis or myopericarditis was about threefold to fourfold higher for mRNA-1273 (Moderna) vaccination than that for BNT162b2 (Pfizer-BioNTech) vaccination," the study said. While most members showed zero effect as the result of the vaccine, 21.6 of members recorded resting heart rates 10 percent or greater than their 14-day. People with stroke and heart conditions such as coronary artery disease, heart failure or cardiomyopathy (inflammation of the heart muscle) are at higher risk for severe illness from COVID-19. However, the overall risk of getting heart inflammation from the vaccines, both of which are based on mRNA-technology, was low, according to the study, conducted by researchers from Denmark's Statens Serum Institute. ![]()
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