•Researchers have investigated the incidence of heart inflammation after Pfizer and Moderna vaccination in Denmark.

•They found that both vaccines, and especially Moderna, are linked to an increased rate of inflammation in two areas of the heart.

•The scientists stress that — as the absolute numbers were small — the vaccines are still beneficial for personal and societal health.
Previous researchTrusted Source has suggested a linkTrusted Source between SARS-CoV-2 vaccination and myocarditis and myopericarditis. Myocarditis is inflammation of the heart muscle, while myopericarditis is inflammation of the membrane around the heart. In the most severe cases, both conditions can lead to heart failure and death.

The inflammation is usually triggered by viral, bacterial, or fungal infection. EvidenceTrusted Source suggests that it occurs especially after the second booster dose of the Pfizer and Moderna mRNA vaccines.

The underlying cause of the link between COVID-19 vaccines and myocarditis is unclear. However, scientistsTrusted Source have observed a similar link with the smallpox vaccine in adults.

The Centers for Disease Control and Prevention (CDC)Trusted Source and the European Medicines Agency are engaged in ongoing investigations to confirm and clarify any link. Currently, little publicly available research has assessed the incidence of the conditions in a complete population.

In a recent study, researchers from Denmark analyzed national healthcare data to identify links between mRNA vaccination and a diagnosis of myocarditis or myopericarditis.

They found that mRNA vaccination against COVID-19 was linked to a significantly increased risk of both heart conditions. However, the absolute rates of these conditions after the vaccinations were low.

The study was published in BMJTrusted Source.

“The percentage of myocarditis cases associated with vaccination is not surprising, as it is very similar to studies in the United States and Israel,“ Dr. April Stempien-Otero, a cardiologist at the University of Washington Medical Center’s Heart Institute, in Seattle, told Medical News Today. Dr. Stempien-Otero was not involved in the recent research.

Read more- https://www.medicalnewstoday.com/articles/covid-19-vaccines-linked-to-small-heart-inflammation-risk