pfizer and heart concerns

now that hundreds of millions of doses of covid-19 vaccines have been administered in the u.s., an abundance of safety data has been collected. myocarditis and pericarditis are conditions that have occurred following covid-19 vaccination in a very small number of people. the risks to the heart from covid-19 infection can be more severe. myocarditis is a rare condition that causes inflammation of the heart muscle. they are not unique to covid-19 vaccination. myocarditis and pericarditis are typically caused from infection with a virus, including viruses that cause the common cold. according to a study published by the american heart association, myocarditis and pericarditis were more commonly reported among males (90%).




rare cases of inflammation of the heart have occurred after the second dose of mrna vaccines (moderna and pfizer-biontech). as of july 2021, there were 1,000 reported and 300 confirmed cases of myocarditis or pericarditis in the u.s. data collected from the study found that symptoms of post-vaccine myocarditis and pericarditis are generally mild, and symptoms often resolved on their own or with minimal treatment. less than 20% of patients in the study were admitted to the icu; among those patients, only two needed medication to support the heart or help with blood pressure. myocarditis and pericarditis are more typically reported in children who develop multisystem inflammatory syndrome (mis-c) following covid-19 infection. mis-c is a condition that causes different parts of the body to become inflamed, including the heart, lungs, kidneys, brain, and gastrointestinal organs. the cdc reports at least 5,900 cases of mis-c causing 52 deaths among children in the u.s. similarly, a study in the u.s. and a large study in the u.k. that included adults found that myocarditis is more common after covid-19 infection than after vaccination. the risks of covid-19 illness far outweigh the risks of experiencing a rare adverse reaction to vaccination.

myocarditis is an inflammation of the heart muscle that can result in serious health problems, according to the national heart, lung and blood institute. for every 1 million second doses administered, moderna vaccine recipients had 10.7 additional cases of myocarditis and pericarditis over people who got pfizer, according to the study. the rate of myocarditis was also higher among people in the same age group who received pfizer as their first dose and moderna as their second than in people who got two pfizer shots.

dr. sara oliver, a cdc official, said more myocarditis cases would be expected following moderna’s vaccine, but the company’s shots would also prevent more covid hospitalizations than pfizer’s vaccine. canadian public health authorities also found that the rate of myocarditis was higher for both moderna and pfizer’s vaccine when the interval between the first and second dose was less than 30 days.â  the cdc’s vaccine experts are considering a longer interval of 8 weeks between the first and second doses of both company’s shots to address the risk of myocarditis. physicians recommend that people who develop myocarditis avoid vigorous physical activity for a few months to make sure their heart fully recovers.â  people face a much higher risk of developing myocarditis from covid infection than the vaccines, according to the department of health and human services. the risk of myocarditis from covid is 100 times higher than developing the condition after covid vaccination, according to a recent paper in nature reviews cardiology.

the known risks of covid-19 illness and its related, possibly severe complications, such as long-term health problems, hospitalization, and even death, far michelle johnson, a cardiologist, says heart problems caused by a covid-19 vaccine are extremely rare. if they do occur, they usually clear up on their own the risk of developing inflammation of the heart muscle after receiving the pfizer–biontech covid-19 vaccine is very low, according to two, .

rare cases of inflammation of the heart have occurred after the second dose of mrna vaccines (moderna and pfizer-biontech). though rare, pfizer and moderna’s vaccines have both been linked to a risk of myocarditis. however, the risk was higher following the second the condition, called myocarditis, an inflammation of the heart muscle, has been reported in a very small number of people who received either, .

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