Australia is approaching its fifth Omicron COVID-19 wave. What can we expect this time?

A leading epidemiologist says it is clear Australia is approaching its fifth Omicron wave of COVID-19. 

University of South Australia Professor Adrian Esterman says it is certainly true for South Australia which has seen cases increase for three consecutive weeks.

But, how is the rest of the nation tracking and what could a fifth COVID wave look like?

How many cases make a wave?

Simply put, a wave happens when the numbers increase week on week. 

Infectious diseases paediatrician Robert Booy says it doesn’t depend on how many cases there are, but rather that there is a surge in numbers. 

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