Rates of myocarditis and pericarditis continue to slightly increase, particularly among young boys and adolescents following a second dose of the Moderna vaccine. It is not known why paraesthesia and hypoaesthesia sometimes occur after vaccination, but the TGA suggests they are usually mild and may be a stress-related response to immunisation rather than an immune reaction. Meanwhile, paraesthesia (an unusual feeling in the skin, such as tingling or a crawling sensation) and hypoaesthesia (a decreased feeling or sensitivity) have been reported to the TGA for each of the COVID-19 vaccines and are mentioned in about 9% of all reports relating to the Pfizer vaccine. Only five cases of suspected erythema multiforme were reported to the TGA up to 2 January. This condition usually resolves on its own, but treatment may be needed for more severe cases.’ ‘The rash is characterised by small round spots that are darker at the centre than the edges. ‘Erythema multiforme may appear on the hands or feet before spreading to other areas,’ the TGA states. These events were reportedly not observed in clinical trials but have been reported during post-market surveillance. The product information for Pfizer has been updated to include the potential adverse events erythema multiforme (a type of allergic skin rash), paraesthesia and hypoaesthesia (tingling and numbness of the skin). The report did not reference any instances of myocarditis or pericarditis occurring in those who have received boosters so far.Īccording to the Australian Technical Advisory Group on Immunisation (ATAGI), early observational data from Israel shows that a lower rate of myocarditis and pericarditis was reported after a booster dose of the Pfizer vaccine than after the second dose of the Pfizer primary course.īut there is not yet sufficient data to establish rates of myocarditis or pericarditis specifically after a booster dose of Moderna. The TGA expects around 5% of third-dose Pfizer recipients and up to 10% of Moderna recipients will experience this reaction. However, the results of clinical trials and observations from regulators overseas, where more booster doses have been given, suggest swollen lymph nodes will occur more frequently after boosters than after either the first or second doses, where it affected less than 1% of people. The regulator’s most recent COVID-19 vaccine weekly safety report indicates that the type of side effects associated with boosters is not expected to be different to first and second doses of either the Pfizer or Moderna vaccines. (Images: AAP)Īpproximately 600 adverse reports have been submitted in relation to around 2.5 million booster doses administered in Australia up to 2 January, according to the Therapeutic Goods Administration (TGA). Swollen lymph nodes have been the most commonly reported adverse effect to emerge from Australia’s booster program.ĭata suggest swollen lymph nodes will occur more frequently after Pfizer and Moderna boosters than after either the first or second doses.
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