Restrictions are continuing at six schools and a nursery in Bradford which have been affected by the winter vomiting bug.

They have been imposed at Hollingwood and St Oswald's primaries in Great Horton, Margaret MacMillan Primary in Manningham, Frizinghall Primary, Bowling Park Primary, Lapage Primary in Barkerend Road and Midland Road Nursery in Manningham, a Council spokesman said.

Letters have been sent to parents warning them to keep children away from school or nursery if they show signs of suffering from symptoms of the highly-contagious norovirus bug, which causes vomiting and diarrhoea, in a bid to stop the gastrointestinal disease spreading.

The Health Protection Unit said anyone suffering from the symptoms should stay away from school or work until 48 hours after they have gone, drink fluids to prevent dehydration and rest.