The Launceston General Hospital has been forced to cease admissions to one of its general medical wards due to a number of cases of influenza A.
Ward 6D will not take any further admissions until the cases are contained.
A health spokesperson said patients currently on the ward will remain on the ward until they can be discharged.
As of 3pm, there were three patients who are confirmed to have the virus, with a further four suspected.
Infection control protocols are now in place, with additional cleaning being undertaken.
Patients remaining on the ward are being offered an influenza A anti-viral medication, as are people who have recently visited.
Tasmanian Health Service Executive Director of Operations Eric Daniels said the virus was likely to have entered the ward from the community.
“Patients and visitors will not be permitted to enter the ward while this situation is being contained,” he said.
“Strict infection controls are now in place. We are adhering to infection containment protocols and advice from Public Health Services.
“Anyone suffering from influenza, or influenza-like symptoms, should avoid going to hospital to visit other patients.”