"The most common adverse effects following immunisation (AEFI) reported to the TGA are predictable and have been observed with vaccines generally. They include headache, muscle and joint pain, fever, chills and injection site reactions.
The most common reactions reported for the AstraZeneca COVID-19 vaccine in the week of 21-27 June 2021 were headache, muscle pain, fever, nausea and fatigue.
The most common reactions reported for the Comirnaty (Pfizer) COVID-19 vaccine in the week of 21-27 June 2021 were headache, dizziness, nausea, muscle pain, and lethargy."
