Share on Twitter Australia will soon have access to up to one million doses of Pfizer COVID-19 vaccines per week, with supplies of the jab set to triple. The country currently has between 300,000 and 350,000 Pfizer vaccines doses a week to administer. That will jump to one million a week in the second half of July, with 4.5 million expected in August - significantly more than first anticipated. The boost is not due to extra supplies. The 4.5 million doses were previously expected in September, and are now being brought forward by a month. READ MORE Prime Minister Scott Morrison is confident the bringing forward of doses will give his government’s troubled vaccine rollout a shot in the arm.