More than fifty patients and staff have become ill with the winter vomiting bug at the Dumfries and Galloway Royal Infirmary.
Three wards remain closed, after the outbreak was confirmed on Friday.
Infection control procedures are in place.
Visitors are being asked to stay away, if they have any symptoms.
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An art exhibition will be taking place this weekend at the Rose Castle, which used to be the private home of the Bishops of Carlisle.