A ward at the Royal Lancaster Infirmary has been closed to new admissions, after an outbreak of the 'flu.
Ward 20 is still open to visitors though, although friends and family are asked to stay away if they've had any symptoms themselves.
Joanne Gaffing, Infection Prevention Matron, University Hospitals of Morecambe Bay NHS Foundation Trust (UHMBT), said: “All members of the public are being reminded not to visit the RLI, if they are unwell, have been unwell in the last 48 hours, or had contact with a person, with flu like symptoms in recent days.
“If you do visit please ensure that you wash your hands when you enter and exit the ward, limit time on the ward, do not visit other patients or other areas of the hospital and avoid bringing children.
“Influenza can be spread through contact with an infected person, by contact with contaminated surfaces or by consuming contaminated food or water.
"This illness can be highly disruptive to patients, and on rare occasions it may lead to patients having surgery or other procedures cancelled.
"We would ask people to please follow our advice to minimise its effects on the hospital, themselves and their families.”
If urgent, you can contact ward 20 by calling the main switchboard telephone number 01539 732288.