A rehabilitation unit at the West Cumberland Hospital in Whitehaven is closed to admissions, due to an outbreak of flu.
Visiting has also been restricted at the Copeland Unit after 12 patients ans 6 staff members caught the seasonal bug.
The unit is designed to provide further care to patients who have already been in hospital by offering rehabilitation before discharge.
According to the Health Protection Agency, flu is most common between December and March.
Anyone with questions about patients can contact the Copeland Unit on 01946 693181.
Health professionals are advising people what to do if they catch the bug:
– Dr Nigel Calvert, Associate Director of Public Health, Cumbria
"Flu can be serious and cause serious health complications in people with existing health conditions.
"This includes children and adults with existing conditions from diabetes to cancer, pregnant women, where both mother and baby can be at risk, and people aged 65 and over.
"The best way people can protect themselves is by having the flu vaccine. It's freely available for people in at-risk groups and it only takes a few minutes.
“For others who are normally fit and healthy who catch the bug, the best advice is, for them to stay at home."