All vaccines are thoroughly tested for safety before they are approved for use in Australia. This includes careful analysis of clinical trial data, ingredients, chemistry, manufacturing and other factors.
Vaccine ingredients vary depending on what the vaccine is for. They may contain some of the following ingredients:
- a protein component of a virus
- a piece of genetic code (DNA or mRNA)
- a very small dose of a weakened virus
- a substance to boost the immune response (an adjuvant)
- a small amount of preservative
- sterile salt water (saline) for injections.
Ingredients for the Pfizer/BioNTech COVID-19 vaccine will be listed in the Australian Register of Therapeutic Goods.
Vaccine side effects
You may experience minor side effects following vaccination. Most side effects last no more than a couple of days and you will recover without any problems.
Read more about what happens after you are vaccinated for COVID-19.
Use the COVID-19 vaccine side effects symptom checker if you have concerns about any symptoms after your vaccine. The checker is also available through the National Coronavirus Helpline, 1800 020 080, 24 hours a day.
The COVID-19 vaccine side effects symptom checker is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a medical professional for serious symptoms or emergencies.
Vaccines are monitored for a long time
Even after a vaccine is given to you, it is still monitored for safety.
If you have any questions about vaccines, your doctor, nurse or other healthcare professional can help. Healthcare professionals then contribute to ongoing monitoring by informing the TGA of any side effects, even if they are very minor.
This means the TGA can oversee the safety of a vaccine across the country and, in the unlikely event that there is a safety risk, inform healthcare providers, the community and the Government as soon as possible.