A third person has died from coronavirus in Victoria, bringing the national death toll to 12.

The man, aged in his 70s, died at a Melbourne hospital, Victorian Health Minister Jenny Mikakos said on Thursday.

It comes as two other men, also aged in their 70s, died overnight.

Victorian Chief Medical Officer Brett Sutton added all three men had pre-existing conditions but said that didn’t mean elderly people without pre-existing conditions weren’t at risk.

In the video below: Two Victorians die from coronavirus overnight

Play Video Two Victorian men have become the latest victims of the Coronavirus crisis - losing their lives overnight. Two Victorian men have become the latest victims of the Coronavirus crisis - losing their lives overnight.

“You can be over 70 with no pre-existing conditions and still be absolutely at risk,” Sutton said on Thursday.

Victoria has 520 confirmed cases of the virus, 149 of whom have recovered and are now considered immune - although it’s not clear for how long.

Of the cases, 14 people are in hospital, three in intensive care.

‘We can make a difference’

Although there is a decreased number of new cases in the state this week, Sutton said people should not become complacent.

“There might be a flattening this week but next week could see an increase,” Sutton said.

“I think there are cases out there who have deferred the time to test who have put others at risk and those close contacts can develop illness.”

General view of the Queen Victoria Markets in Melbourne on Thursday. Credit: Stefan Postles / AAP

He added he was not satisfied with how Victorians are heeding warnings.

“I think a lot of Victorians are doing the right thing,” Sutton said.

“We need absolutely everyone to be on board here.

“It is a critical message. I’m happy to bang the drum on just how important it is at a family level, at a community level, wherever you are; in workplaces or elsewhere.

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“This is the most important thing to get across is that, if you don’t have to be outside your home, then stay at home.”

“We all have a role to play in our fight against coronavirus,” Mikakos added.

Sutton added if the public adhered to social distancing measures put in place so far, Australia could avoid going down the “catastrophic” path other countries have gone down.

“We can make a difference,” he said.