![]() ![]() The TGA is closely monitoring adverse event reports in this age group and will communicate any safety issues if they arise.”Īs of January 9, from 28.4 million doses of Pfizer and 2.1 million doses of Moderna, there have been 467 cases of likely myocarditis – 423 from Pfizer and 44 from Moderna – and a further 1048 cases classed as “suspected” myocarditis – 952 from Pfizer and 96 from Moderna. “Importantly, myocarditis was also very rare in this age group, with 11 confirmed reports from over eight million doses – these were all mild cases. “Reports of more serious effects following vaccination in children in the US were extremely rare with 100 reports from 8.7 million vaccine doses – the most common were fever, vomiting and in some cases seizures,” it said. The most commonly reported reactions in 12 to 17-year-olds are chest pain, headache, dizziness, nausea and fever. The TGA says it has also received about 3000 reports of adverse reactions after vaccination in children and adolescents. The Sydney Olympic Park vaccination centre. Swollen lymph nodes are a normal and known side effect of vaccines and occurs when the immune system is stimulated and were seen in the clinical trials.” The most common adverse events reported to the TGA following a booster dose are swollen lymph nodes (also called lymphadenopathy), headache, fatigue, muscle pain and fever. ![]() “This includes a small number of cases of myocarditis and pericarditis. “To January 9, 2022, we have received approximately 950 reports of suspected adverse events identified after a third or booster dose,” the TGA said. Myocarditis, or inflammation of the heart muscle, and pericarditis, or inflammation of the lining around the heart, are serious but rare side effects associated with mRNA vaccines.Īccording to the TGA, myocarditis – which it describes as “very rare” – is reported in about one to two out of every 100,000 people who receive Pfizer and two to three out of 100,000 who receive Moderna.īut it is more common after the second dose in teenage boys at 12 cases per 100,000 for Pfizer and 17 per 100,000 for Moderna, and young men under 30 at six per 100,000 for Pfizer and 12 per 100,000 for Moderna. “It is not expected that the types of side effects will be different to first and second vaccine doses based on the results of clinical trials, and observations from regulators overseas where more booster doses have been given.” “The TGA is monitoring the safety of booster vaccine doses in adults,” the regulator said. Australia’s medicines regulator has confirmed the first cases of rare heart inflammation after booster vaccines.Īs of January 9, there have been six reports of likely myocarditis – four after Pfizer and two after Moderna – and 12 reports of likely pericarditis – 10 after Pfizer and two after Moderna – after a third or booster dose of a Covid-19 vaccine, according to the Therapeutic Goods Administration’s (TGA) most recent safety update.
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