![]() Michael Chan, an interventional cardiologist with Providence St. Matthew Oster of the CDC told the committee. No deaths have been associated with these vaccine-related conditions.Ĭompared with myocarditis not related to a vaccine, the cases that occurred after mRNA vaccination were milder, with a shorter duration and minimal treatment needed, Dr. As of June 11, only 9 were still hospitalized, with 2 in intensive care, the agency said.Ībout 81 percent of those who have been discharged from the hospital had recovered from their symptoms at the time of the report. Health officials are still investigating to confirm some of these.Īmong the verified cases in younger people, 309 were hospitalized. Of the reported cases, 484 occurred in people between 12 and 29 years old. In June, the FDA added a warning to the patient and provider fact sheets for the mRNA vaccines, explaining that cases of heart inflammation are a rare, but potential, side effect.Ĭases more common in younger people and after second doseĪt least 1,226 cases of myocarditis or pericarditis have been reported as of June 21, according to data presented at a CDC meeting. However, if a person develops myocarditis or pericarditis after the first dose of an mRNA vaccine, the agency recommends that their second dose be delayed.Īfter a person’s heart is fully healed, the CDC said a second dose of an mRNA vaccine could be considered under certain circumstances. Patel said that, because the chance of heart inflammation is extremely low, the CDC is still recommending that all people 12 years old and older receive a COVID-19 vaccine. Defense Department and Israel have reported similar cases of myocarditis or pericarditis among younger men following vaccination with an mRNA vaccine. The rates were higher among people who received the Moderna-NIAID vaccine compared with the Pfizer-BioNTech vaccine. The rate after the first dose was 4.4 cases per million doses administered.īoth rates were measured within 21 days after vaccination. In those 12 to 39 years old, heart inflammation occurred at a rate of 12.6 cases per million second doses given. However, this side effect of vaccination is uncommon. Most cases reported to the CDC occurred in people under age 30 - particularly men - and after the second dose. “This is what caused the CDC to look more closely into this.” “But the rate seen after vaccines is slightly higher than would be expected for younger individuals,” he said. Pranav Patel, the chief of cardiology and an interventional cardiologist with UCI Health, said in an earlier interview that myocarditis and pericarditis can occur naturally due to viral and other infections. People also showed abnormal electrocardiogram and blood test results.ĭr. Reported symptoms included chest pain and difficulty breathing, which typically began within a week after vaccination. Myocarditis is inflammation of the heart muscle, whereas pericarditis is inflammation of the two-layered sac surrounding the heart. The CDC’s ACIP reviewed data on over 1,200 cases of myocarditis or pericarditis in Americans following vaccination with the Pfizer-BioNTech or Moderna-NIAID COVID-19 vaccine. They recommend vaccination for all Americans 12 years and older. ![]() Still, the benefits of the vaccines outweigh the risks, said members of the CDC’s Advisory Committee on Immunization Practices (ACIP). scientists said in June that there’s a “likely association” between mRNA COVID-19 vaccines and a higher risk of rare heart inflammation in adolescents and young adults. One of the anonymous sources who spoke to the Post said it’s too early to reach a conclusion about the new data. The agencies are also reviewing data from the United States. The risk was greater for males under the age of 30. ![]() They suggest the rates of myocarditis after the Moderna-NIAID vaccine may be two-and-a-half times higher than after the Pfizer-BioNTech vaccine, the Post reported. The data that the agencies are reviewing were provided by the Canadian government. However, even with a higher rate, this condition is still uncommon. The Food and Drug Administration (FDA) and Centers for Disease Control and Prevention (CDC) are investigating reports that the Moderna-NIAID vaccine is associated with a higher risk of myocarditis for younger adults than previously believed, according to an August 20 story by The Washington Post. ![]()
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