myocarditis, or heart inflammation, can be caused by the immune system after a viral infection. “myocarditis is inflammation of the heart tissue. the background rate of myocarditis (meaning, how common it normally happens) is less than 2 in 10,000 people. the centers for disease control and prevention is seeing a slightly higher rate in younger people after covid-19 vaccination. “there’s some evidence that suggests myocarditis is happening more than what you’d typically see,” says dr. anderson. “we don’t know why this is happening yet.
however, we now are seeing more virus infections including rhinoviruses, echoviruses and non-covid coronaviruses,” says dr. anderson. my suspicion is that myocarditis after covid-19 vaccination may be due to covid-19 antibodies which are produced after the vaccine and that these antibodies might be interacting with another coronavirus infection that is by chance, overlapping with the vaccine. “we have seen this occur in patients with a covid-19 infection, and of interest, this occurs after a few weeks when the immune response is in full force and you are developing antibodies to the viral antigens of the covid-19 infection. myocarditis cases have been seen: take note of how your heart feels in the days after vaccination. if you have chest pain, call 911 or go to the emergency room. if there’s a 98% chance i’ll be ok if i get covid-19, then why would i want a vaccine that is 95% effective? a lot of people have asked us whether a lack of side effects means a lack of protection.
chest pain; shortness of breath; feelings of having a fast-beating, fluttering, or pounding heart. seek medical care if you or your child have any chest pain rapid or abnormal heart rhythms shortness of breath, at rest or during physical activity swelling in your legs, symptoms began a median of two days after vaccination — meaning half started sooner, half later. chest pain was the most common symptom, .
of the cases reported, the problem happened more often after the second dose of the covid-19 vaccine and typically within one week after covid-19 vaccination. most of the people who received care felt better after receiving medicine and resting. symptoms to watch for include: chest pain. what are the symptoms? chest pain shortness of breath fever symptoms of myocarditis or pericarditis typically appear within 1 to 5 days of vaccination. people who experience any of these symptoms after chest pain occurred in all 21 patients with vaccine-associated myocarditis. the pain started one to seven days after vaccination and lasted, .
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