WATCH: Omicron's BA.4 and BA.5 subvariants are spreading quickly. Here's what you need to know about them

William Huynh
Emma Horn
Updated July 18 2022 - 9:08am, first published 7:00am

Australians with previous COVID-19 immunity have been warned to be on alert again as early research into the virus' latest variants suggests an ability to evade past protections.

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William Huynh

William Huynh


Emma Horn

Emma Horn

Supervising producer

Supervising producer of the national video team. Former features and weekender writer for The Daily Advertiser. Now based in the NSW Hunter region. Small, quiet, and a student of the Julie Bishop School Of Staring. Usually dressed in something colourful, always snacking on something homemade. Friend to most mothers and all dogs. Got stories? Get in touch.

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