The action is being taken at Sunderland Royal Hospital and involves babies born there between 1 November last year and 1 January this year.

Hospital officials have written to all families involved, but say they do not expect any of the babies to test positive for TB.

The hospital has set up a helpline with NHS Direct to give advice.

Managers decided to take action after a member of the maternity department was diagnosed with tuberculosis.

Around 600 adults could have been in contact with the worker, but health officials say they do not need to be tested.

The babies are due to get check ups at the hospital next week.

The hospital has described the move as precautionary.