The Federal Government has limited the COVID-19 Pfizer vaccine to Australians under 50 while preparing to expand the AstraZeneca (AZ) vaccine rollout to those over 50 from May. “With a few exceptions, Pfizer is now restricted to those under 50,” Dr. Brendan Murphy, the Secretary of the Department of Health, told a press conference after National Cabinet on Thursday. “But people always have a choice, and more Pfizer will be available later in the year. At this stage, we will not be making Pfizer available to those 50 and over.” Prime Minister Scott Morrison confirmed that the Pfizer vaccine would be prioritized for people under 50 and 1A and 1B groups. “They will also be prioritised to those in residential aged care facilities and disability care in remote and very remote locations, and for quarantine and those essential front-line workers who are working in those areas which are vaccinated by …