AstraZeneca booster provisionally approved

The two mRNA vaccines which have been approved in Australia, Pfizer and Moderna, are the preferred booster doses, irrespective of the primary vaccine a person received, the TGA said. 

"This includes for people who received the AstraZeneca COVID-19 vaccine for their primary course," the authority said in a statement.

"The Australian government continues to encourage individuals to have a booster following their initial two vaccination doses to enables strong protection against severe illness and hospitalisation, particularly from the Omicron variant."