Health authorities believe the risk of transmission is low because the doctor has never developed symptoms.
One of the new cases was a “household contact linked to the Rydges on Swanston Hotel outbreak”, the department said.
Prior to the new case on Saturday seven contractors and one Rydges employee had tested positive to coronavirus at the hotel which is being used as a quarantine facility.
The Age reported on Saturday that several workers at the Melbourne hotel had complained about lax hygience procedures and training.
Victorian Chief Health Officer Professor Brett Sutton said the department had issued a full review of health protocols at all quarantine hotels in response to the outbreak.
Professor Sutton said the hotels review would examine policies on staff use of personal protective equipment, contaminated PPE disposal, cleaning and the enforcement of physical distancing.
“There will be further digging into what might have happened [at Rydges] to see if there are further recommendations to make,” he said on Thursday.
Of the total 1711 cases, there have been 1422 in metropolitan Melbourne and 238 in regional Victoria, the department said in a statement.
Several cases remain under investigation. The total number of cases is made up of 911 men and 800 women. More than 582,000 tests have been processed to date.
An earlier version of this story incorrectly stated that one of the cases was linked to Lilydale Medical Centre. The incorect information came from the Department of Health and Human Services.
Noel Towell is State Political Editor for The Age
Rachael Dexter is a journalist & audio video producer at The Age.