Prime Minister Scott Morrison fights accusations the government has been too slow to sign a deal with Pfizer as the country lags behind North America and Europe in getting vaccine supplies.
Health Minister Greg Hunt said the government will purchase additional supplies if needed, as the current contract promises 66 million doses. The federal government current plan has Novavax providing 51 million doses and for Moderna to add 15 million boosters shots.
The government is confident of getting one million doses each week from Pfizer from July 19 with a contract that delivers 40 million doses this calendar year.