Areas surrounding a school in Preston in Melbourne's north are on high alert and a social housing block has been forced into isolation after a student tested positive for coronavirus.
A boy in year five at East Preston Islamic College returned a positive test on Wednesday. It comes after the school was closed on Tuesday following the discovery that the boy was meant to be in isolation.
It is understood he had isolated for 11 days instead of the full two weeks after coming in close contact with a positive case in his family.
Late on Wednesday, after his test came back positive, Victoria's Department of Health and Human Services urged any residents of Melbourne's northern suburbs including Dallas, Roxburgh Park, Broadmeadows, Preston and West Heidelberg who are experiencing symptoms to be tested for coronavirus.
"The College has taken positive steps to manage this situation and is working closely with us. It has been closed for deep cleaning," commander of testing and community engagement Jeroen Weimar said in a statement.
"We need everyone working together to tackle this virus, and that's exactly what the school community is doing.
"Staff and students who are close contacts — and their households — have been identified and are quarantining for 14 days."
The DHHS statement also revealed other cases had been identified in a social housing block in Broadmeadows.
120 residents have been asked to self-isolate for 48 hours, get tested and monitor for symptoms.
A close contact of the East Preston Islamic College student has also been identified at Dallas Brooks Primary School. It has since been closed for deep cleaning.