The Launceston General Hospital worker was one of two new cases confirmed in the state on Tuesday night after a run of four virus-free days.

Ten staff members who were in close contact with the worker, aged in their 40s, have been furloughed and will be tested before being allowed to return.

"The likely source is a result of their work in providing care to someone on the ward," Deputy Public Health Director Scott McKeown said.

"But we do need to assess all possible sources of infections."

The person hasn't worked at the hospital in about two weeks, after going into isolation when they felt unwell.

Dr McKeown said he was "very reassured" they had not worked while sick and would have only been infectious for a short time before developing symptoms.

No new cases were recorded on Wednesday, with the overall state figure remaining at 223.

Tasmania is on high alert for any virus cases in healthcare staff after a deadly outbreak at two hospitals in the northwest city of Burnie last month.

Services are progressively coming back online after the facilities were closed three weeks ago, with the surgical ward and medical oncology slated to soon reopen.

Twelve of the state's 13 deaths have come in the northwest, with the region's cluster accounting for about two-thirds of the state's overall tally.

The other confirmed case from Tuesday, a person in their 70s, has apparent links to the outbreak.

Health authorities are warning against complacency and are urging anyone with flu symptoms to get tested.

There are 42 active cases in the state, while 168 people have now recovered.

Legislation giving greater protections to commercial residents and landlords as part of a national code passed state parliament on Wednesday.

Australian Associated Press