Coronavirus Victoria: everything we know about Melbourne's Covid-19 clusters

The city is undergoing a suburban testing blitz after premier Daniel Andrews revealed hotspots in suburbs were largely caused by extended families

• Follow Wednesday's Australian coronavirus liveblog
• Sign up for Guardian Australia's coronavirus email
• Download the free Guardian app to get the most important news notifications

Melbourne embarked on a 10-day testing blitz on 25 June, aiming to test at least 50% of people in 10 suburbs.

This is due to problematic rates of community transmission of coronavirus in these areas, as well as persistent outbreaks and clusters.