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The study only documented myocarditis and pericarditis, rare inflammatory heart conditions, in the vaccinated group, but the incidences were very rare − 27 cases per million after the first dose ...
The study was based on 23 patients ages 13 to 21 who developed myocarditis after their second dose of either the Pfizer-BioNTech or Moderna vaccine. ... infections can also cause myocarditis ...
Myocarditis after receiving a Covid vaccine is rare. Pfizer and Moderna are researching possible long-term risks for those who recovered from heart problems after vaccination.
There is a rare risk of myocarditis (inflammation of the heart muscle) or pericarditis (inflammation of the membrane covering the heart) after the mRNA COVID‑19 vaccines (Moderna or Pfizer-BioNTech). The risk of myocarditis after COVID‑19 vaccination is estimated to be 0.3 to 5 cases per 100,000 persons, with the highest risk in young males ...
In October 2021, the European Medicines Agency (EMA) stated that people with "severely weakened" immune systems can receive an extra dose of either the Pfizer–BioNTech COVID-19 vaccine or the Moderna COVID-19 vaccine starting at least 28 days after their second dose. [69]
Health regulators in several countries have been investigating cases of myocarditis and pericarditis, more frequently found in young men, after a shot of Pfizer or Moderna, vaccines that are based ...
It also stated that people with "severely weakened" immune systems can receive an extra dose of either the Pfizer-BioNTech vaccine or the Moderna vaccine starting at least 28 days after their second dose. [84] The final approval to provide booster shots in the European Union will be decided by each national government. [291]
Cases of myocarditis were usually mild, and they occurred mostly in young males three to five days after the second dose, according to researchers in Israel. Heart risks rare after Pfizer Covid ...