Chief Health Officer Dr Kerry Chant is encouraging people to be up to date with the COVID vaccinations amid warnings of a spike in cases.

Omicron subvariants BQ.1 and XBB are tipped to overtake BA.5 as the dominant variants throughout Australia.

Dr Chant told Ray Hadley anyone over 50 should have had up to four doses of COVID vaccinations.

Press PLAY below to hear all the details