The COVID-19 Public Health Response (Self-isolation Requirements and Permitted Work) Amendment Order (No 2) 2022 reduced the isolation period for COVID-19 cases from 10 days to seven days. It also extended the period in which someone is not required to isolate again after they've had COVID-19 up to three months, so it extended it from one month to three months. So if you've had COVID-19 in the last three months and a member of your household gets it, you don't have to self-isolate again.