COVID-19 cases double the official tally, serology suggests
A Kirby Institute report claims 17% of all Australian adults were infected from December to February
![Dr Dorothy Machalek (PhD).](https://www.ausdoc.com.au/wp-content/uploads/2022/08/Machalek_Dorothy-1.jpg)
Almost 20% of Australian adults were infected with SARS-CoV-2 during the first Omicron wave, serology testing suggests — almost double the official case tally.
According to official government figures, some two million Australian adults contracted COVID-19 between December and February as Omicron swept through Australia.