Coronavirus (COVID-19) at a glance – 31 December 2021

This infographic provides a quick view of the coronavirus (COVID-19) situation in Australia on 31 December 2021.


Coronavirus (COVID-19) at a glance – 31 December 2021

We aim to provide documents in an accessible format. If you're having problems using a document with your accessibility tools, please contact us for help.

Publication date:
Publication type:
General public

As at 3pm on 31 December 2021, a total of 395,504 cases of COVID-19 have been reported in Australia, including 2,239 deaths, and approximately 137,752 active cases. 

  • Over the past week, there have been an average of 16,160 new cases reported each day.
  • COVID-19 cases were reported across all ages:
    • The median age of all cases is 30 years (range: 0 to 106 years).
    • The median age of deaths is 82 years (range: 5 to 106 years).
  • There is a relatively equal ratio of male-to-female cases across most age groups.
  • In 2020 case numbers reached an initial peak at the end of March. This was followed by a period of low case numbers. In mid-June 2020 case numbers started to increase before reaching a secondary peak in early August 2020. Case numbers gradually declined and remained low with spikes occurring in mid-late December 2020 and mid-late April 2021. From late June 2021, case numbers increased and peaked from late September to mid-October 2021. From mid-December 2021 case numbers started to increase again.
  • Of cases with a reported place of acquisition, 53% were locally acquired.
  • The overall proportion of cases under investigation in each state and territory is relatively low, indicating that public health actions, including case identification and contact tracing, is occurring in a timely manner.
  • To date, more than 54,958,500 tests have been conducted nationally. Of those tests conducted, 0.7% have been positive.
  • The ‘cases in aged care services’ table presents the number of cases that have been reported among care recipients in Australian Government-subsidised residential and in-home care settings in each state and territory.

Help us improve

If you would like a response please use the enquiries form instead.