Twelve cases of COVID-19 have been recorded in Brimbank, according to the Department of Health and Human Services.
Elsewhere in the western suburbs, 14 cases have been reported in the municipality of Wyndham, 13 cases in Moonee Valley, 10 cases in Melton, seven cases in Hobsons Bay and five cases in Maribyrnong.
A total of 520 cases have been recorded across the state.
The figures come as Victoria recorded its first deaths from the virus, taking the national toll to 12.
Two men aged in their 70s, died in Melbourne hospitals overnight on Wednesday.
Victoria’s chief health officer Brett Sutton today announced a third death, also a man in his 70s.
Earlier in the week, a staff member who has been at the Kings Park campus of Copperfield College tested positive for COVID-19.
College principal Pip Griffiths said the school was working with the Department of Health and Human Services to develop a contact containment strategy.
Ms Griffiths said all people who were in close contact with the affected staff member would be contacted to ensure they know what actions to take.
All students have been advised to remain at home while the school attempts to contact the affected parties.
It follows a Star Weekly report which revealed that four employees from Werribee Mercy Hospital’s Emergency Department had tested positive to the virus.
Health Minister Jenny Mikakos said the hospital workers were all in a stable condition.
All staff are currently self-isolating and recovering at home.