The national vaccine rollout plan, released yesterday afternoon, has revealed that AstraZeneca vaccine doses will be phased out by October. By this stage, it is expected most Australians over the age of 60 will be vaccinated. From October, AstraZeneca doses will be replaced with up to 2.3 million Pfizer doses per week around the country, as well as up to 614,000 Moderna doses. The AstraZeneca vaccine will be available by request.