The government will recommend the AstraZeneca vaccine only for people aged over 50 after concerns about a rare blood clotting syndrome.
Younger Australians will be advised to take the Pfizer vaccine but can still have the AstraZeneca shot if required.
The risk of blood clots after having the AstraZeneca vaccine is about four in 1 million and the vaccine is still considered safe.
The Morrison government has been forced to overhaul Australia’s COVID-19 vaccine rollout, after experts said the AstraZeneca drug was not advisable for people younger than 50 because of fears of blood clots.