It is one of 12 new COVID-19 cases in Victoria overnight, bringing the state's total to 1732.
The positive case was not tested at Echuca Regional Health or Kyabram and District Health, meaning it was carried out elsewhere.
The Department of Health does not provide the exact location of where the person lives for privacy reasons.
According to the department, the new cases are made up of nine cases linked to two outbreaks, one case detected in a returned traveller in hotel quarantine, one case identified through routine testing, and one case under investigation.
A new outbreak was identified yesterday with two new cases linked to a patient of Monash Health.
One of the new cases is a healthcare worker and the second a household contact of the patient, taking the total in this outbreak to three.
The health service is contacting all staff and patients who may have been close contacts of the healthcare worker and the patient. All areas of the health service that the health care worker has been in close contact with are being deep cleaned.
Seven new cases reported yesterday were linked to an extended family outbreak in Melbourne’s northern and south-eastern suburbs.
Two of those linked to the family outbreak are students at St Dominic’s Primary School in Broadmeadows.
Pakenham Springs Primary School will also close today, initially for 24 hours, after two students from the same household outbreak tested positive.
One case reported yesterday from routine testing attended the Black Lives Matter protest in Melbourne.
The source of infection is under investigation, but at this stage there are no links to the previous case who attended the protest. They were not thought to be infectious at the time of attending the protest. They are now in self-isolation and contact tracing is under way.
Anyone who attended the march is urged to remain vigilant and if symptoms develop should isolate at home and get tested as a matter of urgency.
“Thanks to Victorians playing their part, staying at home and getting tested, we have made some great progress in slowing the spread of coronavirus,” Victoria’s chief health officer Professor Brett Sutton said.
“However, we are still seeing transmission in households and other settings. It remains critical to practice good hygiene - wash your hands regularly and cough and sneeze into a tissue or your elbow and try to avoid touching your face," he said.
“Stay 1.5m away from anyone you don’t live with and avoid crowds, especially indoors. If you can keep working from home – you must keep working from home.
“And if you do feel unwell with any symptoms of coronavirus you should get tested. This includes fever, chills, cough, sore throat, shortness of breath, runny nose or loss of sense of smell.
“If you attended the Black Lives Matter march in the city on Saturday 6 June there is currently no requirement to quarantine or get tested if you do not have symptoms. However, should you develop any symptoms, no matter how mild, it is critically important that you get tested.”
Of the total 1732 cases, 239 are in in regional Victoria.