Is it true? Are COVID-19 vaccines not effective?

No. Both the Pfizer (Comirnaty) and AstraZeneca (Vaxzevria) vaccines are very effective at preventing people from severe illness, hospitalisation and death if they catch COVID-19. Find out more below.

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Are COVID-19 vaccines not effective?

No. Both the Pfizer (Comirnaty) and AstraZeneca (Vaxzevria) vaccines are very effective at stopping people from becoming very sick if they catch COVID-19.

The vaccines have been thoroughly assessed by the Therapeutic Goods Administration (TGA) and found to be effective. Read more about the approval of the vaccines.

Clinical trials of both vaccines also indicate their effectiveness is very good.

As other countries around the world progress with their rollouts, more and more data is becoming available that shows these vaccines are both highly effective when it comes to a real world situation.

For example, data from the United Kingdom shows that both these vaccines also significantly reduce severe COVID-19 in older adults.

This adds to the growing evidence that shows both the Pfizer (Comirnaty) and AstraZeneca (Vaxzevria) vaccines are working and are highly effective in protecting people against severe illness, hospitalisation and death.

Are COVID-19 vaccines effective?

All vaccines approved for use in Australia are very effective at stopping people from becoming very sick if they catch COVID-19.

The vaccines have been thoroughly assessed by the Therapeutic Goods Administration (TGA) and found to be safe and effective. Read more about the approval of the vaccines.

Clinical trials and real world data show that COVID-19 vaccines are highly effective to prevent severe illness with COVID-19.

For example, data from the United Kingdom shows that these vaccines also significantly reduce the risk of severe COVID-19, including hospitalisation and death, in older adults.

Learn more about COVID-19 vaccines

With new COVID-19 vaccine developments every day, it’s normal to have questions or concerns, and possibly feel hesitant about getting a vaccine. That's why we're providing accurate, evidence-based answers to questions about COVID-19 vaccines.

Learn more about COVID-19 vaccines

Last updated: 
10 May 2022

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