The Australian government's entire vaccine supply agreement with AstraZeneca is being withheld from public release on the grounds it poses a "real and substantial risk" to national security if it were released.
Australia's vaccine rollout has faced one of its most difficult weeks, as many states across the country re-entered lockdown following COVID-19 outbreaks and tension between the states and federal government grows over vaccine supply issues and debates over the AstraZeneca vaccine.