Chief Health Officer Brett Sutton revealed the woman died in a Melbourne hospital last night.
It comes after a Victorian woman in her 70s died in a Melbourne hospital overnight, as well as an 85-year-old man in Queensland.
The state’s coronavirus tally has surged to 1036 confirmed cases – an increase of 68 new cases from Wednesday.
Cases range in age from babies to their early 90s.
Sutton warned people should particularly steer clear of visiting elderly loved ones.
“What we don’t want is for those elderly individuals, who are very susceptible and vulnerable to very severe disease, to have visits that are not necessary,” he said.
“If it’s a care arrangement, where someone needs to provide care for someone who’s elderly, then that’s OK.
“Other than that, we are genuinely encouraging and directing people to stay away.”