A large study published by the Centers for Disease Control and Prevention shows that people who have Covid-19 face a higher risk of myocarditis and other inflammatory heart conditions than people who have not been exposed to the disease.
The risk of myocarditis, pericarditis and multisystem inflammatory syndrome was higher for males and females ages 5 and older after Covid infections. According to the CDC, these cardiac conditions are rare after infections and vaccinations.
Myocarditis and pericarditis are inflammations of the heart muscle. Multiple organ systems are affected by multi system inflammatory.
The risk of myocarditis and pericarditis after the second dose of Pfizer and Moderna's vaccines has been associated with boys ages 12 to 17 years old. According to the CDC, the risk of myocarditis and pericarditis was higher in this group.
The rate of myocarditis or pericarditis among teenage boys was at least 50 cases per 100,000 people, compared to 22 cases per 100,000 after the second vaccine dose. The risk of heart conditions after Covid infections was up to 5.6 times higher compared to the second vaccine dose. The risk was up to 69 times higher after the first shot.
More than 15 million people ages 5 and older had their electronic health records examined by the CDC. Scientists studied the risk of developing a cardiac condition after a Covid infection compared to the first and second doses of Pfizer and Moderna's vaccines. The study did not include booster doses.
The risk of a heart issue after Covid infection was anywhere from 2 to 115 times higher compared to vaccination depending on age, gender and the dose administered.
The CDC said in February that males should wait eight weeks between the first and second dose of the Pfizer or Moderna vaccine to reduce their risk of myocarditis. When the time between the first and second dose was less than 30 days, the rate of myocarditis was higher.
According to data presented to the CDC's committee of vaccine experts in February, Moderna's second dose appears to be associated with a higher risk of myocarditis than Pfizer's. The rate of myocarditis was five times higher for males ages 18 to 24 after a second dose of Moderna compared to Pfizer.
According to a CDC survey of health-care providers presented at the February meeting, the majority of people who developed myocarditis after beingvaccinated recovered fully and did not have any effect on their quality of life.
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