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The CDC is investigating cases of myocarditis in young people after receiving the COVID-19 vaccine. Experts said the symptoms were mild and, given the number of vaccinations in the US, very rare. The doctors there emphasize, however, that the likelihood of myocarditis is the same when someone is vaccinated as it is with an unvaccinated person.
- Myocarditis is a disease of various, mostly viral, origins that attacks the heart muscle
- This is one of the common complications of more severe COVID-19
- Recently there have been suspicions, first in Israel, now in the US, that myocarditis may be a side effect of an mRNA vaccine
- In the United States, they check dozens of such cases in young people
- You can find more such stories on the TvoiLokony home page
The COVID-19 vaccine and myocarditis
The American agency Centers for Disease Control and Prevention (CDC) is checking dozens of reports that myocarditis may develop in adolescents and young people after receiving the COVID-19 vaccine. The CDC stated that cases are rare given the number of doses of vaccines administered and that they may be entirely unrelated to vaccinations.
At the same time, the CDC website urged doctors and clinicians to pay attention to unusual heart symptoms in young people who received the vaccine.
“It might just be a coincidence that some people develop myocarditis after immunization. It’s likely that something like this will happen by chance, because many people are already vaccinated today, says Dr. Celine Gounder, an infectious disease specialist at Bellevue Hospital Center in New York.
The information on the CDC website shows that these symptoms occurred mainly in adolescents and young adults, more often in men than in women, more often after the second dose than after the first, and most often within four days after vaccination. These incidents occurred in people vaccinated with mRNA preparations, i.e. vaccines from Moderna and Pfizer-BioNTech.
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“Most cases appear mild and case follow-up is ongoing,” reads the Vaccine Safety Committee. At the same time, experts noted that a possible rare side effect is much less likely than the risk of developing COVID-19, and that myocarditis is one of the symptoms of severe coronavirus cases.
Doctors: do not frighten with vaccines
These reports were quickly commented on by American pediatricians. Doctors are concerned that parents will misinterpret the CDC’s reports and fear that they will vaccinate their child against COVID-19.
“Thorough research shows that myocarditis was not more common among vaccinated adolescents than in unvaccinated adolescents,” said Dr William Schaffner, member of the Advisory Committee on Immunization. “So there is no causal link to vaccination,” he added.
“The likelihood of having myocarditis is the same if you are vaccinated as it is if you were not vaccinated,” said Dr. Paul Offit, a pediatric infectious disease specialist at the University of Pennsylvania. “I’m worried that people will be needlessly scared of these vaccines,” added Offit.
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Doctors emphasize that for all vaccines – not just those that protect against COVID-19 – the CDC and the FDA (US Food and Drug Administration) encourage people to report any “adverse event” that occurs after vaccination.
“Doctors and patients are encouraged to report medical events that occur after vaccination if there is even a thought, hypothesis or question that it might be vaccine-related,” said Schaffner, infectious disease specialist at Vanderbilt University Medical Center. After reporting adverse events, the CDC and the FDA check to see if the rate of adverse events – in this case, myocarditis – is higher than expected.
Previously, suspicions that a Pfizer vaccine was causing myocarditis had arisen in Israel. However, the European Medicines Agency and Pfizer experts said such a link was unlikely.
“If these events are more common in the vaccinated population than in the unvaccinated population, then there is reason to believe that the vaccine may be the cause. But if the incidents occurred similarly in the vaccinated and unvaccinated populations, then it is overwhelmingly likely that they were accidental and would have occurred regardless of vaccination, ‘Schaffner said.
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“Myocarditis is often caused by infections, and rates are especially high at this time of year when the Coxsackie virus, which can infect the heart, is more common,” said Offit.
Myocarditis
About 10 to 20 people per 100 suffer from myocarditis in the general population annually. Symptoms of the disease include: fatigue and chest pain, arrhythmia and cardiac arrest. According to the researchers, many cases are likely to have mild symptoms and are never diagnosed.
Myocarditis is a condition that most often occurs as a result of various types of viral or bacterial infections and allergic reactions. Myocarditis affects the middle layer of the heart, the endocardium, but can also be associated with pericarditis. This condition can be very dangerous, and the high-risk group includes the elderly, children, immunocompromised and chronically ill people.
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Among the causes of myocarditis, the most frequently mentioned are viral infections of the upper respiratory tract, digestive tract infection, systemic lupus erythematosus, sarcoidosis, bacteria from the staphylococcal or streptococcal group. It can also be caused by a reaction to certain medications and antibiotics.
Myocarditis is one of the more common complications after coronavirus, especially among people with cardiac problems. Some studies conducted last year indicated that this may be as much as 60-70 percent. people from this group.
To date, 34 million people have fallen ill with the coronavirus in the United States. Over 605 died COVID-19 has infected around 4 million children in the US, or 14 percent. all cases. More than 16 were sent to hospitals. young patients. That’s more than a year of hospitalizing children in the US because of the flu.
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19 children have died from COVID-300.
To date, over 19 million people in the US have received a single dose of the COVID-163 vaccine. About 4,5 million of this group are people aged 12 to 18. The youngest ones are vaccinated with a preparation of the Pfizer-BioNTech company. In early May, the FDA granted approval to vaccinate children 12 to 15 years of age.
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