![]() Overall it’s estimated anaphylaxis occurs in approximately five people per million doses of the Pfizer vaccine administered. Anaphylaxis is an acute allergic reaction where people experience a rash, lip and tongue swelling, trouble breathing and sometimes shock (low blood pressure and fast heart rate). There have been reports of anaphylaxis after the Pfizer vaccine. But if your symptoms persist or get worse, you should see your GP. You can manage symptoms such as pain or fever with medicines like paracetamol or ibuprofen. ![]() We know from AusVaxSafety surveillance and safety data from overseas they usually last less than two to three days, and nearly everyone who experiences side effects is back to normal one week after vaccination. Side effects will usually present in the first 24-48 hours after vaccination. They occur because our immune system is responding to the vaccine. These sorts of side effects are very similar to those reported in clinical trials and what’s been set out in the Pfizer vaccine’s product information. The most common side effects include headache, muscle aches and fatigue, and these are more common after dose two compared to dose one. We know a lot about its safety from both clinical trials and safety surveillance programs in the community.ĪusVaxSafety has been collecting and regularly updating vaccine safety data from Australians who have received a COVID vaccine, either Pfizer or AstraZeneca.Īs of May 30, more than 245,000 people had responded to text message or email questionnaires on side effects after their first dose of the Pfizer vaccine, and over 140,000 people had responded after dose two.Ĭlose to two-thirds of people reported no reactions after the first dose, and 40% reported no reactions after the second. This vaccine has now been administered to many millions of people around the world. Two doses are needed, with a gap of at least three weeks between doses. In Australia the Pfizer vaccine is registered for use in people over 16. We’re monitoring the safety of the Pfizer vaccine in real time But with many Australians now lining up for the Pfizer shot, let’s take a look at what we know about side effects and rare adverse events after this vaccine. To this point, we’ve been quite fixated on the side effects and small risks associated with the AstraZeneca vaccine. This is based on advice from Australia’s Technical Advisory Group on Immunisation around the risk of rare blood clotting disorders following the AstraZeneca vaccine. Most Australians under 50 will receive the Pfizer vaccine, which is the preferred COVID vaccine for people in this age group. In the Northern Territory, everyone aged over 16 is now eligible, while in Western Australia adults over 30 will be eligible from Thursday. Some states and territories had already opened up their rollout to under 50s, including Victoria, which invited 40-49-year-olds to come forward from late May in light of the current outbreak. ![]() ![]() For the latest evidence-based information on COVID-19 and COVID-19 vaccines, visit NCIRS COVID-19 vaccines: Frequently asked questions and NCIRS COVID-19 and children: Frequently asked questions.Īs of Tuesday this week, all Australian adults aged 40-49 are eligible to receive a COVID-19 vaccine. NCIRS will not be updating this article as information changes. What are the side effects of the Pfizer vaccine? An expert explains Please note: As this article was reproduced on the NCIRS website on 9 June 2021, some of the information it contains is no longer current. ![]()
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