FOUR hospital wards have been closed at Calderdale Royal Hospital after a winter bug outbreak.
Admissions to wards 1,2, 4 and 5 have been restricted at the Halifax site after patients suffered symptoms including vomiting and diarrhoea.
The bug struck on three medical wards and one surgical at the hospital.
Affected patients have been segregated and are being given extra fluids.
Today hospital bosses confirmed the bug had not spread to Huddersfield Royal Infirmary.
But they said all patients were being verbally screened before being admitted to HRI.
And those showing symptoms of viral gastroenteritis were being kept in side rooms away from other patients.
Carole Hallam, infection control lead nurse for Calderdale and Huddersfield NHS Trust, said: "I would urge people again to think hard before they visit hospital if they have symptoms of nausea, vomiting, diarrhoea, headaches and abdominal pain.
"If you do not need to visit please don't for the sake of our patients and staff.
"If it is essential that you visit, please decontaminate your hands with the alcohol gel when entering and leaving the wards and only stay with the patient you are visiting.
"If you are visiting more than one patient, please go to the affected ward last."
She said there had been widespread cases of viral gastroenteritis across the region affecting the general public, including schoolchildren at Lindley.
She urged anyone with symptoms of viral gastroenteritis to stay at home, have plenty of fluids and if they are concerned contact their GP or NHS direct.