Four new Covid-19 cases have been identified in Melbourne s northern suburbs
Urgent alert for anyone at Jump! Swim School Bundoora 8.55am-10.15am May 21
Attendees must get tested and isolate for isolate for 14 days, regardless of result
Alert for Highpoint Shopping Centre in Maribyrnong on May 20, 5pm-8pm
More potential exposure sites are expected to be revealed in the coming days