Is it true? How long will the COVID-19 vaccine last once I have had 2 doses?

It is not yet known how long the protection of the COVID-19 vaccine will last. We will know more through ongoing research. Clinical trials are currently happening to find out if we will need booster doses on an annual or longer basis.

Is it true? COVID-19 vaccination image

How long will the COVID-19 vaccine last once I have had 2 doses?

It is not yet known how long the protection of the COVID-19 vaccine will last. We will know more through ongoing research. Clinical trials are currently happening to find out if we will need booster doses on an annual or longer basis.

What we do know is that evidence shows that all of the COVID-19 vaccines approved for use In Australia   prevent severe disease, people going to hospital and dying.

Protection against getting infected does appear to wane over time. Protection against death and severe disease also drops over time, but more slowly. You can increase your protection by getting a booster from 3 months after your primary course Some people who are at higher risk of severe disease should also get an additional booster dose, called a ‘winter dose’ to optimise their protection.

Learn more about booster doses and winter doses.

The aim of Australia’s COVID-19 vaccination program is to reduce COVID-19 related harm. Vaccines do this by preventing serious illness and death, and, as much as possible, transmission of the virus that causes disease.

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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