In the US, Pfizer and Moderna vaccines have a new side effect

The US Food and Drug Administration (FDA) announced that it has added warnings about possible rare side effects on the heart to the accompanying documentation of the Pfizer / BioNTech and Moderna vaccines, according to the regulator's website.

“Today, the FDA is announcing changes to Moderna and Pfizer-BioNTech patient and provider fact sheets. These covid-19 vaccines suggest an increased risk of myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the tissue surrounding the heart) following vaccination.

For example, patients are advised to seek immediate medical attention if they experience chest pain, shortness of breath, or a feeling of rapid heartbeat, fluttering, or pounding.

The agency clarified that for 300 million doses of Pfizer and Moderna vaccines used in the United States, about 1.2 thousand cases of myocarditis and pericarditis were registered. About 300 more people under the age of 30 ended up in hospitals, but almost all of them were discharged after the examination.

The Moderna and Pfizer vaccines are two of three drugs approved in the US - the US-based Johnson & Johnson single-component vaccine is also approved for use in the country.

Earlier it was reported that the World HEALTH Organization (WHO) will study whether there is a connection between cases of myocarditis (inflammation of the heart muscle) and vaccination against CORONAVIRUS with a drug from Pfizer / BioNTech. According to WHO spokeswoman Mariangela Simao, information about such cases comes from the United States and Israel. “We are monitoring through the Strategic Advisory Group on Vaccine Safety,” she said.

According to WHO data, as of June 25, the United States ranks first among countries in the world in terms of the number of cases of coronavirus infection - more than 33 million people, as well as the number of deaths - about 600 thousand people. During the day, 14.2 thousand new cases of COVID-19 were registered in the country, another 355 people died.