This is expected to be the smallest Omicron wave so far. But eligible older and vulnerable people are still recommended to have a booster.

Australia is now into its next COVID wave. We’ve seen hints of this for a while. Case numbers and indicators of severe disease began rising in Victoria in August. But it has taken several months for a consistent pattern to emerge across Australia.

Now we see evidence of this new wave via wastewater surveillance for traces of SARS-CoV-2, the virus that causes COVID. We also see rises in COVID-related hospital admissions and antiviral prescriptions. Compared to past waves, this one has built up slowly and over a longer period.

Here’s what we know about this new wave and what to expect over the coming weeks.