Cambs Flu Advice
Anyone with flu-like symptoms is being asked to stay away from Addenbrooke's Hospital in Cambridge.
Children are also being advised not to visit the hospital "unless it is essential".
It's after a rise in the number of people being admitted to Addenbrooke's with flu.
Any patients with an appointment who feels poorly is advised to contact the hospital.
An Addenbrooke's spokesman said: "Like most hospitals in the country, we are seeing an increase in the number of patients with flu.
The hospital's plan for handling the virus has been in place for some time, and we will continue to operate as usual."
Anyone with flu-like symptoms is advised to contact their GP or NHS direct on 0845 46 47.
Meanwhile, at Peterborough City Hospital, a spokesperson said: "Our advice for anyone who is suffering from flu like symptoms is the same as always; visit the NHS Direct website or phone 0845 4647 before visiting your GP or hospital.
NHS Direct provides information and advice about treating flu symptoms and also has a symptom checker where you can answer a series of questions which will help determine if you need to visit your GP."
NHS advice for good hygiene:
* germs spread easily so please carry tissues and use them to catch your cough or sneeze
* dispose of dirty tissues as soon as possible
* clean your hands thoroughly and regularly with soap and water or alcohol hand gel (Spirigel).